Patent 97,505
date: label: date made
content: ca 1869
label: date made
content: ca. 1869
label: patent date
content: 1869-12-07
name: label: inventor
content: Hall, Thomas S.
notes: label: Location
content: Currently not on view
place: label: associated place
content: United States: Connecticut, Stamford
setName: label: See more items in
content: Work and Industry: Transportation, Railroad
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: TR.309224
label: catalog number
content: 309224
label: patent number
content: 97,505
objectType: label: Object Name
content: patent model, railway electromagnetic signal
label: Other Terms
content: signal switch; patent model, railway electromagnetic signal; Rail