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US Patent: 487,123
Bit-brace
Patentee:
Andrew Knudsen (exact or similar names) - Tucson, AZ

USPTO Classifications:
279/36, 81/32, 81/73

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Nov. 29, 1892

Patent Pictures:
USPTO (New site tip)
Google Patents
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