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$251.60
Vintage Lafayette Instrument The Diplomat I Polygraph Lie Detector (Untested)
$2,195.00
Lafayette Instrument PCASS Portable Polygraph Juniper Allegro MX MSRP: $7498!
$999.99
Lafayette Instrument PCASS Portable Polygraph Juniper Allegro MX MSRP: $7498!
$27.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1E/Tube Driver Amp 7DAC
$10.00
Graphic Controls Corp, One Roll of Chart Paper for 6-inch Polygraph Lafayette
$77.00
Grass Instrument Co Polygraph 7P3B Wide-Band A.C. Pre-Amplifier & Integrator
$149.95
Vintage Laboratory Polygraph Machine Grass Instruments DC Driver Amplifier 7DAF
$174.95
Grass Instruments 7DA Polygraph D.C. Driver Amplifier Polygraphs
$42.50
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$41.00
Grass Instrument Co Polygraph Integrator 7P1F Low-Level D.C. Pre-Amplifier
$75.00
Grass Instrument Co Polygraph Integrator 7P10A Includes 42RO 500-S PAL Relay
$99.99
GRASS INSTRUMENTS POLYGRAPH DIFFERENTIATOR MODEL 7P20C
$76.00
Grass Instrument Co Polygraph 7P3B Wide-Band A.C. Pre-Amplifier & Integrator
$299.95
GRASS Instruments Model SMT7C Module from Vintage Polygraph Device w/ Handpiece
$199.95
GRASS Instruments RPS 7C8 Regulated Power Supply for Polygraph System
$149.99
Grass Instruments Polygraph D.C. Driver Amplifier 7DAK w/ Pre-Amplifier 7P1F
$58.00
Grass Instrument Polygraph Low-Level D.C. Pre-Amp 7P1L/Tube D.C. Driver Amp 7DAC
$29.99
Polygraph Graphic Controls Chart Recorder Fast Dry Ink about 1 Pint Blue
$950.00
VINTAGE GRASS ® 7DA POLYGRAPH LIE DETECTOR MACHINE & EXTRA ACCESSORIES FREE SHIP
$56.00
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$48.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$88.00
Grass Instrument Co Polygraph Integrator 7P10A Includes 42RO 500-S PAL Relay
$40.00
Grass Instrument Co Polygraph Integrator 7P1E Low-Level D.C. Pre-Amplifier
$52.50
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$55.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$135.00
Grass Instruments Polygraph Integrator Model 7P10-F *Brand new
$47.50
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$199.95
GRASS Instruments Low Level D.C. Amplifier 7P122G Vintage Laboratory Polygraph
$199.95
GRASS Instruments 7P122D Low Level D.C. Amplifier Vintage Polygraph Laboratory
$399.95
GRASS Instruments Electrical Distribution Strip 79PDD-4-5AUX for Polygraph Unit
$199.95
GRASS Instruments RPS7C8 Regulated Power Supply Lab Polygraph Rack Mount Device
$25.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$29.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1E / Tube Driver Amp 7DAC
$59.00
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$48.50
Grass Instruments Polygraph Tachnograph Pre-Amp 7P44D/Tube D.C. Driver Amp 7DAC
$44.99
GRASS INSTRUMENTS POLYGRAPH D.C. DRIVER AMPLIFIER 7DAG
$49.99
Grass Instruments 7P1L Low-Level DC Pre Amplifier & Polygraph DC Driver
$149.95
Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System
$149.95
Grass Instruments 7P1F Low-Level D.C. Pre-Amplifier for Polygraph System
$28.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F/Tube Driver Amp 7DAC
$176.00
Grass Instruments Polygraph Integrator Model 7P10-F &F
$25.00
Grass Instrument Co Polygraph Low-Level D.C. Pre-Amp 7P1F / Tube Driver Amp 7DAC
$399.95
Contact Precision Instruments Research Lab Polygraph PSYLAB System 5 Components
$35.00
Grass Instrument 7P1G Polygraph Low Level D.C. Pre-Amplifier, Rack Mountable #2
$18.00
Associated Research Inc. One Roll of Chart Paper for 6-inch Keeler Polygraph
$100.00
Grass Instruments 7P1G Low-Level DC Pre Amplifier & Polygraph 7DAG Driver
$193.60
Grass Instrument Polygraph Differentiator 7P20-C
$49.99
Grass Instrument 7P1G Polygraph Low Level D.C. Pre-Amplifier, Rack Mountable #2
$108.00
Grass Instruments 7P1F Low-Level DC Pre Amplifier & Polygraph 7DAG Driver
$55.99
Grass Instruments 7DAG Polygraph DC Driver Amplifier & 7P1J DC Pre-Amplifier
$149.95
GRASS Instruments Low-Level D.C. Pre-Amplifier 7P1G for Polygraph System
$171.60
Grass Instruments 7DAH Polygraph DC Driver Amplifier & 7P1F DC Pre-Amplifier
$299.95
GRASS Instruments WK-6-23C3/8 Patch Cable Unit for Vintage Polygraph Machine
$199.95
GRASS Instruments Polygraph D.C. Driver Amplifier 7DAG for Vintage Lie Detector
$140.00
Grass Instrument 7DAF Polygraph DC Driver Amplifier & 7P1DE DC Pre-Amplifier a1
$145.20
Grass Instruments 7DAF Polygraph DC Driver Amplifier & 7P1E DC Pre-Amplifier
$171.60
Grass Instruments 7DAG Polygraph DC Driver Amplifier & 7P1DE DC Pre-Amplifier
$149.95
GRASS Instruments Polygraph D.C. Driver Amplifier 7DAF for Lie Detector Device
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polygraph instrument
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