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US Patent: 10,189
Carpenter's brace and bit-fastener
Patentee:
Howard Perkins - South Bridgewater, MA

USPTO Classifications:
279/97, 65/DIG9

Tool Categories:
woodworking tools : braces : brace chucks

Assignees:
None

Manufacturer:
Unknown

Witnesses:
David Perkins
Artemas Hale

Patent Dates:
Granted: Nov. 01, 1853

Patent Pictures: [ 1 | 2 ]
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Description:
"The nature of my improvement consists in a new mode of fastening the bit into the socket by a slide key as described in the drawing."

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