Polygraph
name: label: maker
content: Western Electro-Mechanical Co., Inc
notes: label: Description
content: Leonarde Keeler (1903-1949) developed and promoted polygraphs, first in California and later in Chicago. This example probably dates from the mid-1930s. An inscription reads “KEELER / POLYGRAPH / 110 VOLT 60 CYCLES SERIAL 1235 MODEL D / CHART FEED 3-6-12 INCHES PER MIN. / CHART No SO115 SKRIP INK / MFD. BY / WESTERN ELECTRO-MECHANICAL CO. INC. / OAKLAND. CAL. / PAT. No. 1788434.”
label: Description
content: Ref: Leonard E. Keeler, “Apparatus for Recording Arterial Blood Pressure,” U.S. Patent 1,788,484 (Jan. 13, 1931).
label: Description
content: “Keeler, Famed As Inventor Of Lie Test, Dies,” <i>Chicago Tribune</i> (Sept. 21, 1949), p. 30.
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Oakland
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: American Polygraph Association
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.321642.02
label: catalog number
content: 321642.02
label: accession number
content: 321642
label: patent number
content: 1788434
objectType: label: Object Name
content: Polygraph
label: Other Terms
content: Polygraph; Diagnostic Medicine
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 28.5 cm x 45.4 cm x 24.4 cm; 11 1/4 in x 17 7/8 in x 9 5/8 in