Pyrometer-Potentiometer
notes: label: Description
content: This instrument was designed by Manfred J. Johnson (d. 1977), an immigrant from Sweden who settled in Connecticut. The inscription reads "Pyrometer-Potentiometer, Lewis Engineering Co., Naugatuck, Conn."
label: Description
content: Ref: Manfred J. Johnson, “Pyrometer-Potentiometer,” U.S. Patent 2,230,779 (Feb. 4, 1941).
place: label: place made
content: United States: Connecticut, Naugatuck
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Carnegie
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1983.0039.10
label: catalog number
content: 1983.0039.10
label: accession number
content: 1983.0039
objectType: label: Object Name
content: pyrometer-potentiometer
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 10 1/2 in x 9 3/4 in; 19.05 cm x 26.67 cm x 24.765 cm