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US Patent: 83,348
Improvement in counter-sink
Patentee:
P. A. Whitney - Woodstock, VT

USPTO Classifications:
408/146

Tool Categories:
woodworking tools : hand drills : drill bits : countersinks

Assignees:
None

Manufacturer:
A. W. Whitney - Woodstock, VT

Witnesses:
William E. Johnson
William D. Foster

Patent Dates:
Granted: Oct. 20, 1868

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for A. W. Whitney

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