Patent model, Johnson telephone transmitter, US Patent #341,579
date: label: Date made
content: 1886
name: label: maker
content: Johnson, E. H.
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.308625
label: catalog number
content: 308625
label: accession number
content: 89797
label: patent number
content: 341579
objectType: label: Object Name
content: Telephone Transmitter
label: Other Terms
content: Telephone Transmitter; Telephones; Transmitter
physicalDescription: label: Measurements
content: overall: 3 1/8 in x 3 in x 3 3/8 in; 7.9375 cm x 7.62 cm x 8.5725 cm