Sheets, Gradeulator, Instructions for Use
date: label: date made
content: 1973
name: label: maker
content: Thomas, Frank J.
notes: label: Description
content: In the early 1970s, Frank J. Thomas (1924-1976), a construction engineer from Topeka, Kansas, invented the "Gradeulator", a circular slide rule. These photocopied sheets give instructions on its use. They were received with an example of the device (see 1990.0509.01).
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
label: See more items in
content: Slide Rules
creditLine: label: Credit Line
content: Gift of Wilma L.Thomas and Rita A. Dukes
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1990.0509.02
label: accession number
content: 1990.0509
label: catalog number
content: 1990.0509.02
objectType: label: Object Name
content: sheets, set of
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 21.6 cm x 28 cm; 8 1/2 in x 11 1/32 in