Patent 181,435
date: label: patent date
content: 1876-08-22
name: label: inventor
content: Hall, Thomas S.
label: inventor
content: Snow, George H.
notes: label: Location
content: Currently not on view
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.308998
label: catalog number
content: 308998
label: patent number
content: 181,435
objectType: label: Object Name
content: patent model, railway electromagnetic signal
label: Other Terms
content: patent model, railway electromagnetic signal; signal, electromagnetic; Rail