Wottring Troposcope, Model 45-B
date: label: date made
content: 1943-1950
label: patent date
content: 1943-04-06
name: label: maker
content: Wottring Instrument Co.
notes: label: Description
content: A label on this instrument reads “THE / WOTTRING / TROPO-SCOPE / U.S.A. PATENT NO. 2316139 / MODEL NO. 45-B / SERIAL NO. 1045.” Le Roy Wottring (1885-1966) devised several optical instruments and assigned some of his patents to the Wottring Instrument Co. in Ohio. That firm was purchased by American Optical in 1950.
label: Description
content: Ref: Le Roy Wottring, “Orthoptic Instrument,” U.S. Patent 2,316,139 (April 6, 1943).
topic: label: associated subject
content: Orthoptics
label: associated subject
content: Ophthalmology
setName: label: See more items in
content: Medicine and Science: Medicine
label: See more items in
content: Health & Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN83545U34
objectType: label: Object Name
content: Troposcope
label: Other Terms
content: Troposcope; Diagnostic Medicine
physicalDescription: label: Measurements
content: overall: 13 3/4 in x 17 7/8 in x 12 1/4 in; 34.925 cm x 45.4025 cm x 31.115 cm