Instruction Manual for Charles Bruning Model 2401 Slide Rule
date: label: date made
content: 1944
name: label: maker
content: Charles Bruning Company, Inc.
notes: label: Description
content: The citation information for this 16-page pamphlet is Charles Bruning Company, Inc., <i>Instruction Manual for Bruning Slide Rule No. 2401</i> (New York, 1944). The cover notes that the company had applied for a patent on a slide rule indicator, but no such patent has been found. The manual begins with the claim that results on model 2401 were significant to three digits. After explaining the parts of a slide rule, the manual divides the process of learning to use a slide rule into twelve steps, each of which are discussed with examples, solutions, and exercises in the remainder of the pamphlet. This manual was received with 1991.0445.03.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, New York City
topic: label: Subject
content: Mathematics
label: Subject
content: Rule, Calculating
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 Richard R. Lombardi
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1991.0445.03.01
label: accession number
content: 1991.0445
label: catalog number
content: 1991.0445.03.01
objectType: label: Object Name
content: pamphlet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 22.5 cm x 14.5 cm; 8 27/32 in x 5 23/32 in