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US Patent: 1,286,231
Gear-driven bit brace
Patentee:
Elmer Cliffgard (exact or similar names) - Grafton, NC

USPTO Classifications:
81/36

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Dec. 03, 1918

Patent Pictures:
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