Cornell electromagnetic telegraph, patent #4,318
date: label: Date made
content: 1845
name: label: maker
content: Cornell, Ezra
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.252669
label: catalog number
content: 252669
label: accession number
content: 49064
label: patent number
content: 4318
objectType: label: Object Name
content: Telegraph, Electromagnetic
label: Object Name
content: electromagnet
physicalDescription: label: Measurements
content: overall: 2 1/2 in x 4 1/4 in x 23 1/2 in; 6.35 cm x 10.795 cm x 59.69 cm