Patent model, Gray electro-harmonic telegraph, US Patent #173,618
date: label: Date made
content: 1876
label: date made
content: 1875
name: label: associated person
content: Gray, Elisha
label: maker
content: Elisha Gray
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.308867
label: catalog number
content: 308867
label: accession number
content: 89797
label: patent number
content: 173618
objectType: label: Object Name
content: Harmonic telegraph
label: Object Name
content: telegraph transmitter
label: Other Terms
content: Harmonic telegraph; Telegraphy
physicalDescription: label: Measurements
content: overall: 7 in x 12 in x 12 1/2 in; 17.78 cm x 30.48 cm x 31.75 cm