Polygraph
Polygraph
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- Description
- One inscription on this polygraph reads “REACTION / CENTER / B & W LIE DETECTOR / ELECTRONIC PSYCHOMETER / Manufactured by B & W Associates / SOLE DISTRIBUTORS: SIRCHIE FINGER PRINT LABORATORIES / Philadelphia 7, Pa, USA.” Another reads “B & W ASSOCIATES / MICHIGAN CITY, INDIANA, USA / U.S. PAT. NO. 2,535,249 / SENSITIVITY / ELECTRODES / MI-CRO-CENTER / CENTER / VOLTS 115 / AMPS 3 / FREQ 60 / MODEL 740 / SERIAL 7451.”
- Ref: Paul L. Wilhelm and Frank Donald Burns, “Electric Psychometer,” U.S. Patent 2,535,249 (Dec. 26, 1950).
- Location
- Currently not on view
- Object Name
- Polygraph
- Other Terms
- Polygraph; Lie Detector; Medicine
- date made
- ca 1950
- maker
- B & W Associates
- Physical Description
- wood (overall material)
- metal (overall material)
- plastic (overall material)
- Measurements
- overall: 27 cm x 31 cm x 19.1 cm; 10 5/8 in x 12 3/16 in x 7 1/2 in
- ID Number
- MG.321642.04
- catalog number
- 321642.04
- accession number
- 321642
- model number
- 740
- serial number
- 7451
- patent number
- 2535249
- Credit Line
- American Polygraph Association
- See more items in
- Medicine and Science: Medicine
- Data Source
- National Museum of American History
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