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US Patent: 140,451
Improvement in drill and bit stocks
Patentee:
Charles H. Amidon (exact or similar names) - Millers Falls, MA

USPTO Classifications:
279/56, 408/65

Tool Categories:
woodworking tools : hand drills

Assignees:
None

Manufacturer:
Amidon Mfg. Co. - Millers Falls, MA

Witnesses:
George Bartle
R. D. O. Smith
Patent Dates:
Applied: Oct. 31, 1872
Granted: Jul. 01, 1873

Patent Pictures:
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