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US Patent: 82,179
Bit-stock
Patentees:
M. Francis Thompson (exact or similar names) - Greenfield, MA
John W. Thompson (exact or similar names) - Greenfield, MA

USPTO Classifications:
279/40

Tool Categories:
woodworking tools : braces : brace chucks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Sep. 15, 1868

Patent Pictures:
USPTO (New site tip)
Google Patents
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