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Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System
Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System

$149.95

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Grass Medical Stimulus Isolation Unit SIU-4678
Grass Medical Stimulus Isolation Unit SIU-4678

$79.99

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GRASS Instruments RPS 7C8 Regulated Power Supply for Polygraph System
GRASS Instruments RPS 7C8 Regulated Power Supply for Polygraph System

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Grass Instruments RPS312 Power Supply
Grass Instruments RPS312 Power Supply

$99.00

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Grass Instruments Model 7P511J EEG Amplifier For Data Processing 7P511L
Grass Instruments Model 7P511J EEG Amplifier For Data Processing 7P511L

$49.00

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Astro-Med Grass Instruments S88X Stimulator - Free Shipping
Astro-Med Grass Instruments S88X Stimulator - Free Shipping

$149.99

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Grass Instruments AM8 C Audio Monitor - High-Quality, Reliable, and Versatile!
Grass Instruments AM8 C Audio Monitor - High-Quality, Reliable, and Versatile!

$395.00

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Grass Medical Instruments SM6 Stimulator For Parts and Repair No Power
Grass Medical Instruments SM6 Stimulator For Parts and Repair No Power

$64.95

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Grass Instruments S44 Square Stimulator S44F
Grass Instruments S44 Square Stimulator S44F

$149.00

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Grass Instrument Co. P55 A.C. Pre-Amplifier P55A
Grass Instrument Co. P55 A.C. Pre-Amplifier P55A

$69.95

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Astro-Med Grass Instruments S88
Astro-Med Grass Instruments S88

$149.99

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Grass Medical Instruments AM8B AM8 Audio Monitor Powers on Tested
Grass Medical Instruments AM8B AM8 Audio Monitor Powers on Tested

$199.99

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GRASS Instruments Electrical Distribution Strip 79PDD-4-5AUX for Polygraph Unit
GRASS Instruments Electrical Distribution Strip 79PDD-4-5AUX for Polygraph Unit

$399.95

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Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System
Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System

$149.95

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GRASS Instruments RPS7C8 Regulated Power Supply Lab Polygraph Rack Mount Device
GRASS Instruments RPS7C8 Regulated Power Supply Lab Polygraph Rack Mount Device

$199.95

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GRASS Instruments Model SMT7C Module from Vintage Polygraph Device w/ Handpiece
GRASS Instruments Model SMT7C Module from Vintage Polygraph Device w/ Handpiece

$299.95

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Grass Instruments S44 Stimulator For Parts/Repair
Grass Instruments S44 Stimulator For Parts/Repair

$40.00

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Grass Instruments S44 Square Stimulator - Powered On - For Parts/Repair Only
Grass Instruments S44 Square Stimulator - Powered On - For Parts/Repair Only

$129.95

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Grass Instruments PT5B Volumetric Pressure Transducer
Grass Instruments PT5B Volumetric Pressure Transducer

$29.99

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Grass Instruments FT03D Force-Displacement Transducer
Grass Instruments FT03D Force-Displacement Transducer

$29.99

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GRASS MEDICAL INSTRUMENTS GRASS S44 PULSE STIMULATOR MOD S44B POWERS ON
GRASS MEDICAL INSTRUMENTS GRASS S44 PULSE STIMULATOR MOD S44B POWERS ON

$175.00

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Grass Instruments FT10 Force Displacement Transducer
Grass Instruments FT10 Force Displacement Transducer

$60.00

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Vintage Grass Instruments Model 12CA Calibration Control / Test Module
Vintage Grass Instruments Model 12CA Calibration Control / Test Module

$29.74

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Grass Instruments Adapter Cable
Grass Instruments Adapter Cable

$63.74

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T192919 Grass Instruments AM8 Audio Monitor AM8B
T192919 Grass Instruments AM8 Audio Monitor AM8B

$300.00

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Grass Instrument Co. P55 A.C. Pre-Amplifier P55C For Parts or Repair
Grass Instrument Co. P55 A.C. Pre-Amplifier P55C For Parts or Repair

$69.99

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Grass Medical Instruments Model S48K Pulse Nerve Muscle Stimulator Power Tested
Grass Medical Instruments Model S48K Pulse Nerve Muscle Stimulator Power Tested

$149.99

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Grass Instruments Force-Displacement Transducer FT03C
Grass Instruments Force-Displacement Transducer FT03C

$21.29

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Grass Instruments Regulated Power Supply RPS 107 & P511K (3) UNITS **Untested**
Grass Instruments Regulated Power Supply RPS 107 & P511K (3) UNITS **Untested**

$300.00

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GRASS Instruments Low Level D.C. Amplifier 7P122G Vintage Laboratory Polygraph
GRASS Instruments Low Level D.C. Amplifier 7P122G Vintage Laboratory Polygraph

$199.95

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GRASS Instruments 7P1F Low Level DC Pre Amplifier for Polygraph Lie Detector
GRASS Instruments 7P1F Low Level DC Pre Amplifier for Polygraph Lie Detector

$149.95

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GRASS Instruments 7P122D Low Level D.C. Amplifier Vintage Polygraph Laboratory
GRASS Instruments 7P122D Low Level D.C. Amplifier Vintage Polygraph Laboratory

$199.95

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Grass Instruments LM4 Lesion Maker
Grass Instruments LM4 Lesion Maker

$89.99

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GRASS INSTRUMENTS ELECTRODE SELECTOR PANEL RACKMOUNT RARE USED
GRASS INSTRUMENTS ELECTRODE SELECTOR PANEL RACKMOUNT RARE USED

$129.99

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Grass Medical Instruments Grass S48 Stimulator (S48B) Powers On Untested
Grass Medical Instruments Grass S48 Stimulator (S48B) Powers On Untested

$200.00

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Grass SIU5A Stimulus Isolation Unit
Grass SIU5A Stimulus Isolation Unit

$125.00

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Grass Instruments 7P21 A ENG Differentiator
Grass Instruments 7P21 A ENG Differentiator

$52.00

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LOT OF 2 GRASS INSTRUMENTS PSIU6E PHOTOELECTRIC STIMULUS ISOLATION UNITS
LOT OF 2 GRASS INSTRUMENTS PSIU6E PHOTOELECTRIC STIMULUS ISOLATION UNITS

$165.00

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GRASS Instruments WK-6-23C3/8 Patch Cable Unit for Vintage Polygraph Machine
GRASS Instruments WK-6-23C3/8 Patch Cable Unit for Vintage Polygraph Machine

$299.95

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Grass Instruments S9 Laboratory Stimulator Model MS9B TESTED WORKING
Grass Instruments S9 Laboratory Stimulator Model MS9B TESTED WORKING

$99.99

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LOT OF 2 GRASS INSTRUMENTS SD9B SQUARE WAVE SIMULATORS FOR PARTS
LOT OF 2 GRASS INSTRUMENTS SD9B SQUARE WAVE SIMULATORS FOR PARTS

$279.00

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Grass Instruments P11T Strain Gage Amplifier set of 4, with cables
Grass Instruments P11T Strain Gage Amplifier set of 4, with cables

$290.00

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Grass Instruments SD9 Stimulator | Model SD9B | Powers On, Untested
Grass Instruments SD9 Stimulator | Model SD9B | Powers On, Untested

$126.00

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Grass Instruments 7P1G Low-Level DC Pre Amplifier & Polygraph 7DAG Driver
Grass Instruments 7P1G Low-Level DC Pre Amplifier & Polygraph 7DAG Driver

$90.00

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(3) Grass Instrument Co. MODEL 711G...LOT OF 3 ..USED..UNTESTED
(3) Grass Instrument Co. MODEL 711G...LOT OF 3 ..USED..UNTESTED

$40.00

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Grass Instruments Model 7P511J EEG Amplifier For Data Processing 7P511L
Grass Instruments Model 7P511J EEG Amplifier For Data Processing 7P511L

$54.99

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Grass Medical Instruments SM6 Stimulator MODEL S6C
Grass Medical Instruments SM6 Stimulator MODEL S6C

$79.99

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Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC

$56.00

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GRASS Instruments Cable F-71C3
GRASS Instruments Cable F-71C3

$79.98

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Grass Instruments AM8 C Audio Monitor - partially tested (powers on)
Grass Instruments AM8 C Audio Monitor - partially tested (powers on)

$179.99

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Grass Instrument P511K (3 units) + RPS 107B Regulated Power Supply + 10VPG B
Grass Instrument P511K (3 units) + RPS 107B Regulated Power Supply + 10VPG B

$450.00

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Grass Instruments SD 5 Stimulator - Movie Prop, Steampunk, Film - PARTS ONLY
Grass Instruments SD 5 Stimulator - Movie Prop, Steampunk, Film - PARTS ONLY

$124.99

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GRASS EKG Tachograph Pre-Amplifier 7P4K Vintage Rack Mount Laboratory Device
GRASS EKG Tachograph Pre-Amplifier 7P4K Vintage Rack Mount Laboratory Device

$199.95

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Grass Force-Displacement Transducer FT03D, Grass Medical Instruments, In Case!
Grass Force-Displacement Transducer FT03D, Grass Medical Instruments, In Case!

$22.95

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Grass Medical Instruments Constant Current Unit Model CCU 1 A Missing Leads
Grass Medical Instruments Constant Current Unit Model CCU 1 A Missing Leads

$54.99

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GRASS Medical Instruments S9 Stimulator, RPS 112 Regulated Power Supply And
GRASS Medical Instruments S9 Stimulator, RPS 112 Regulated Power Supply And

$202.50

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Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC

$42.50

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Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC

$52.50

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Astro Med Grass Instruments S11 Rack Mountable S11B Rack Mountable
Astro Med Grass Instruments S11 Rack Mountable S11B Rack Mountable

$100.00

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Grass Medical Instruments SM6 Stimulator
Grass Medical Instruments SM6 Stimulator

$80.00

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Grass Instruments P11T Strain Gage Amplifier set of 4, OEM power supply & cables
Grass Instruments P11T Strain Gage Amplifier set of 4, OEM power supply & cables

$345.00

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Grass Medical Instruments LM-3 Lesion Maker EL4026
Grass Medical Instruments LM-3 Lesion Maker EL4026

$39.99

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GRASS ELECTRODE SELECTOR TELEFACTOR DISTRIBUTION STRIP POWER SUPPLY, RACK ETC.
GRASS ELECTRODE SELECTOR TELEFACTOR DISTRIBUTION STRIP POWER SUPPLY, RACK ETC.

$149.00

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Grass Instrument Control Circuit for Differential Transformer Transducers 7P7 BC
Grass Instrument Control Circuit for Differential Transformer Transducers 7P7 BC

$20.00

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Grass Instruments 7P1F Low-Level DC Pre Amplifier & Polygraph 7DAG Driver
Grass Instruments 7P1F Low-Level DC Pre Amplifier & Polygraph 7DAG Driver

$108.00

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Astro-Med GRASS INSTRUMENTS DASH IV
Astro-Med GRASS INSTRUMENTS DASH IV

$24.02

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GRASS INSTRUMENTS SD 5 SD5 STIMULATOR 12AU7 Tubes
GRASS INSTRUMENTS SD 5 SD5 STIMULATOR 12AU7 Tubes

$115.00

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Grass Medical Instruments S11A Stimulator 125 Watts -NOT FULLY TESTED- POWERS ON
Grass Medical Instruments S11A Stimulator 125 Watts -NOT FULLY TESTED- POWERS ON

$46.83

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Grass Instrument Company Square Pulse Stimulator S88 UNTESTED POWERS ON
Grass Instrument Company Square Pulse Stimulator S88 UNTESTED POWERS ON

$235.00

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Grass Force-Displacement Transducer FT03C, Grass Medical Instruments, In Case!
Grass Force-Displacement Transducer FT03C, Grass Medical Instruments, In Case!

$22.95

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Grass SIU5 SIU5C Stimulus Isolation Unit
Grass SIU5 SIU5C Stimulus Isolation Unit

$199.99

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Grass Instruments FT03 E Force-Displacement Transducer In Case
Grass Instruments FT03 E Force-Displacement Transducer In Case

$29.99

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Grass Instruments S48 Pulse Stimulator with isolation unit
Grass Instruments S48 Pulse Stimulator with isolation unit

$550.00

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Grass Instrument Co. PS-2 Tube Type Photo Stimulator (UDK53)
Grass Instrument Co. PS-2 Tube Type Photo Stimulator (UDK53)

$30.00

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Grass Medical Instruments Stimulator S48 Square Pulse Nerve Muscle Stimulator
Grass Medical Instruments Stimulator S48 Square Pulse Nerve Muscle Stimulator

$249.99

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Grass Instruments Force-Displacement Transducer FT03C
Grass Instruments Force-Displacement Transducer FT03C

$21.29

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Grass Medical Instruments AM8 Audio Monitor
Grass Medical Instruments AM8 Audio Monitor

$140.00

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Grass Instruments Grass S48 Pulse Stimulator
Grass Instruments Grass S48 Pulse Stimulator

$300.00

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GRASS INSTRUMENTS PS 22 PHOTIC STIMULATOR PS22 PS22C
GRASS INSTRUMENTS PS 22 PHOTIC STIMULATOR PS22 PS22C

$129.99

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Grass Instruments Model S9 and SD9 Square Wave Stimulators Instruction Manual
Grass Instruments Model S9 and SD9 Square Wave Stimulators Instruction Manual

$14.95

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Grass Instruments Force-Displacement Transducer FT03C
Grass Instruments Force-Displacement Transducer FT03C

$21.29

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GRASS INSTRUMENTS PHOTIC STIMULATOR LAMP W/ARM AND BULB FOR PS 22 PST2100 BULB
GRASS INSTRUMENTS PHOTIC STIMULATOR LAMP W/ARM AND BULB FOR PS 22 PST2100 BULB

$189.00

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Vintage Laboratory Polygraph Machine Grass Instruments DC Driver Amplifier 7DAF
Vintage Laboratory Polygraph Machine Grass Instruments DC Driver Amplifier 7DAF

$149.95

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Grass Instruments Force-Displacement Transducer FT03C
Grass Instruments Force-Displacement Transducer FT03C

$21.29

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GRASS INSTRUMENTS S44 PULSE STIMULATOR S44 D
GRASS INSTRUMENTS S44 PULSE STIMULATOR S44 D

$189.00

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Grass SIU Stimulus Isolation Unit SIU5D
Grass SIU Stimulus Isolation Unit SIU5D

$150.00

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Grass Instruments Model 7LSA EKG Lead Selector
Grass Instruments Model 7LSA EKG Lead Selector

$49.98

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Grass Instruments 7DA Polygraph D.C. Driver Amplifier Polygraphs
Grass Instruments 7DA Polygraph D.C. Driver Amplifier Polygraphs

$174.95

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GRASS SD9 Stimulator Module SD9B Neurology Square Pulse Stimulator Lab Unit
GRASS SD9 Stimulator Module SD9B Neurology Square Pulse Stimulator Lab Unit

$199.95

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Grass Force-Displacement Transducer FT10C, Grass Medical Instruments, In Case!
Grass Force-Displacement Transducer FT10C, Grass Medical Instruments, In Case!

$24.95

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Grass Instruments AM8 Audio Monitor AM8B
Grass Instruments AM8 Audio Monitor AM8B

$212.50

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Grass Instruments FT03 D Force-Displacement Transducer In Case
Grass Instruments FT03 D Force-Displacement Transducer In Case

$29.99

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Grass Instruments Force-Displacement Transducer FT03D
Grass Instruments Force-Displacement Transducer FT03D

$21.29

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GRASS INSTRUMENTS POLYGRAPH D.C. DRIVER AMPLIFIER 7DAG
GRASS INSTRUMENTS POLYGRAPH D.C. DRIVER AMPLIFIER 7DAG

$44.99

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GRASS Instruments P122 AC/DC STRAIN GAGE AMPLIFER SET OF 8
GRASS Instruments P122 AC/DC STRAIN GAGE AMPLIFER SET OF 8

$499.99

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GRASS Instruments Low-Level D.C. Pre-Amplifier 7P1G for Polygraph System
GRASS Instruments Low-Level D.C. Pre-Amplifier 7P1G for Polygraph System

$149.95

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Grass Medical Instruments SM6 Stimulator No Handle
Grass Medical Instruments SM6 Stimulator No Handle

$74.99

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Grass Instruments Pulse Stimulator S44D
Grass Instruments Pulse Stimulator S44D

$275.00

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Grass Instrument Square Pulse - Model: S44
Grass Instrument Square Pulse - Model: S44

$244.99

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Grass Instrument P15 A.C. Preamplifier with RPS 112 Regulated Power Supply
Grass Instrument P15 A.C. Preamplifier with RPS 112 Regulated Power Supply

$249.00

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