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US Patent: 664,978
Micrometer Gage
Patentee:
Frank Spalding - Providence, RI

USPTO Classifications:
33/816

Tool Categories:
metalworking tools : machinist tools : measuring tools : micrometers

Assignees:
Brown & Sharpe Mfg. Co. - Providence, RI

Manufacturer:
Not known to have been produced

Witnesses:
Ira L. Fish
R. A. Bates

Patent Dates:
Applied: Apr. 20, 1899
Granted: Jan. 01, 1901

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Brown & Sharpe Mfg. Co.
Description:
Wilmarth H. Thurston - patent attorney

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