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US Patent: 361,488
Bit-stock (with internal gearing)
Patentees:
T. F. Carroll - Laconia, NH
S. J. Cilley - Gonic, NH

USPTO Classifications:
81/36

Tool Categories:
woodworking tools : braces : geared braces

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Apr. 19, 1887

Patent Pictures:
USPTO pdf tiff
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