Patent 89,308
date: label: date made
content: ca1869
label: date made
content: ca. 1869
label: patent date
content: 1869-04-27
name: label: inventor
content: Hall, Thomas S.
notes: label: Location
content: Currently not on view
place: label: associated place
content: United States: Massachusetts, Boston
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.309220
label: catalog number
content: 309220
label: patent number
content: 89,308
objectType: label: Object Name
content: patent model, railroad signal, electric
label: Other Terms
content: patent model, railroad signal, electric; signal, electric; Rail