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Patent model, Dolbear electro-dynamometer, US Patent #228,807

Patent model, Dolbear electro-dynamometer, US Patent #228,807

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Location
Currently not on view
Object Name
Electrodynamometer
Date made
1880
associated person
Dolbear, Amos E.
maker
Dolbear, Amos E.
Measurements
overall: 6 1/2 in x 5 in; 16.51 cm x 12.7 cm
ID Number
EM.308589
catalog number
308589
accession number
89797
patent number
228807
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Work and Industry: Electricity
Data Source
National Museum of American History
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