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US Patent: 626,876
Micrometer Calipers
Patentees:
Frank Spalding (exact or similar names) - Providence, RI
Edwin C. Thurston (exact or similar names) - Providence, RI

USPTO Classifications:
33/819

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

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

Manufacturer:
Not known to have been produced

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

Patent Dates:
Applied: Jul. 29, 1898
Granted: Jun. 13, 1899

Patent Pictures:
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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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