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US Patent: 49,758
Bit stock with chain-driven gear multiplication
Patentees:
H. A. House - Bridgeport, CT
J. A. House - Bridgeport, CT

USPTO Classifications:
408/124

Tool Categories:
woodworking tools : braces : geared braces

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Sep. 05, 1865

Patent Pictures:
USPTO pdf tiff
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