Thermometer

Thermometer

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Description
Gustav W. Schumacher, a machinist in Maine, obtained a patent for a metal thermometer in 1876. This is the model he submitted with his patent application. The inscription reads "G.W. Schumacher Portland, ME."
Ref: Schumacher, “Improvement in Thermometers,” U.S. Patent 172,181 (January 11, 1876).
Object Name
thermometer
Object Type
Patent Model
Measurements
overall: 11 1/2 in x 4 1/2 in; 29.21 cm x 11.43 cm
ID Number
PH.308948
catalog number
308948
accession number
89797
patent number
172,181
See more items in
Medicine and Science: Physical Sciences
Exhibition
Inventing in America
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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