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US Patent: 889,409
Automatic Center Punch
Patentee:
Frank Spalding - Providence, RI

USPTO Classifications:
30/367

Tool Categories:
punches

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

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

Witnesses:
Chalres H. Luther, Jr.
Ada E. Hagerty
J. A. Miller, Jr.

Patent Dates:
Applied: Oct. 26, 1904
Granted: Jun. 02, 1908

Patent Pictures: [ 1 | 2 | 3 ]
USPTO pdf tiff
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"Vintage Machinery" entry for Brown & Sharpe Mfg. Co.

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