Polygraph

Polygraph

<< >>
Usage conditions apply
Downloads
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
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Comments

Add a comment about this object