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US Patent: 645,838
Micrometer Gage
Patentee:
Frank Spalding (exact or similar names) - Providence, RI

USPTO Classifications:
33/817

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

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

Manufacturer:
Not known to have been produced

Witnesses:
B. M. Simms
Charles H. Luther, Jr.
Joseph A. Miller, Jr.

Patent Dates:
Applied: Mar. 16, 1899
Granted: Mar. 20, 1900

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Brown & Sharpe Mfg. Co.
Description:
Joseph A. Miller & Co. - patent attorneys

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