Impulse Counter
date: label: patent date
content: 1939-10-24
name: label: maker
content: Central Scientific Company
notes: label: Description
content: An inscription on the bottom of this device reads “U.S. PATENT / 2177367" (Patented Oct. 24, 1939) / IMPULSE COUNTER AND STOP WATCH TIMER / Inventor: Paul E. Klopsteg, Chicago, Ill., assignor to Central Scientific Company.” A metal tag reads “CAT. NO. 74511 / 3381 SER. NO.” Paul Ernest Klopsteg (1889-1991) was a physicist who joined the Central Scientific Co. in 1921 and served as president of the firm from 1930 to 1944.
label: Description
content: Ref: Paul E. Klopsteg, “Impulse Counter and Stop Watch Timer,” U.S. Patent 2,177,367 (Oct. 24, 1939), assigned to Central Scientific Co.
label: Description
content: “Scientist Paul E. Klopsteg, 101,” Chicago Tribune (May 3, 1991), p. DC10.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Donation of George E. Burch, Jr., M.D., Professor of Medicine, Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1980.0186.223
label: patent number
content: US2177367A
label: serial number
content: 3381
label: accession number
content: 1980.0186
label: catalog number
content: 1980.0186.223
objectType: label: Object Name
content: timer, interval
label: Object Name
content: counter, electrical impulse
physicalDescription: label: Measurements
content: overall: 2 3/4 in x 4 3/4 in x 5 1/2 in; 6.985 cm x 12.065 cm x 13.97 cm