More important piece of equipment than ever in these post truth times. Fully practical traditional pen and ink chart recorder polygraphs (can also be used as seismographs)
1971: Practical lie detector/polygraph/seismograph/chart recorder
Add Prop
2412: Period Military Chart recorder
2999: 6 pen lie detector/EEG machine/Siesmograph/chart recorder
3109: Polygraph/medical chart recorder/seismograph
2013: Practical large floor-standing 8 pen lie detector/alternative fact tester
3209: Non-practical floor standing lie detector/chart recorder
1646: Contemporary lie detector/polygraph/seismograph/alternative fact tester
1645: Practical pen & ink polygraph/lie detector/seismograph/alternative fact tester film prop
4294: Practical "lie detector/polygraph" /seismograph/gas chromatograph/remote pen drawing device
5077: Graphic Printer
5078: Graphing Device
5080: Lab Writer
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