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US Patent: 1,107,938
Bit-brace with crank arm
Patentee:
Samuel N. Hall - Houston, TX

USPTO Classifications:
279/36, 81/28, 81/32

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Aug. 18, 1914

Patent Pictures:
USPTO pdf tiff
Google Patents
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