Documentation on Ray Multitester and Ray Polygraph
date: label: date made
content: 1930s
label: date made
content: 1935-1939
notes: label: Description
content: Included here are:
label: Description
content: 1. A folder of letters and typescripts relating to a U.S. patent application and patent of the psychologist Joseph J. Ray. The patent for an “educational device”, applied for in 1937, was issued May 2, 1939 as #2157058. Compare 1979.0853.01, the Ray Multitester.
label: Description
content: 2. Materials sent to J.J. Ray relating to the Institute of American Inventors, about 1939.
label: Description
content: 3. A folder of biographical materials relating to J. J. Ray
label: Description
content: 4. Correspondence and publications sent to Ray relating to test scoring equipment and to his patent applications 1935-1937 – includes a leaflet on IBM’s International Test Scorer
label: Description
content: 5. Materials relating to the possibility of patenting Ray’s polygraph, 1936.
label: Description
content: 6. Negatives of parts of Ray machines.
label: Description
content: 7. Notes and drawings of J.J. Ray, about 1920-1935.
label: Description
content: For related objects, see the rest of accession 1979.0853 as well as accession 1985.0815.
label: Location
content: Currently not on view
topic: label: Subject
content: Psychology
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Teaching Machines
creditLine: label: Credit Line
content: Gift of Ruth D. Ray
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0853.03
label: catalog number
content: 1979.0853.03
label: accession number
content: 1979.0853
objectType: label: Object Name
content: documentation
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 10 1/2 in x 16 in x 2 1/2 in; 26.67 cm x 40.64 cm x 6.35 cm