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US Patent: 246,233
Ratchet bit-brace
Patentee:
Nelson N. Spofford (exact or similar names) - Haverhill, MA

USPTO Classifications:
81/29, 81/35

Tool Categories:
woodworking tools : braces : ratchet braces

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Aug. 23, 1881

Patent Pictures:
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