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US Patent: 143,142
Improvement in Gimlet-Handles
Patentee:
Charles L. Griswold - Chester, CT

USPTO Classifications:
81/28

Tool Categories:
woodworking tools : hand drills : gimlets

Assignees:
None

Manufacturer:
Charles L. Griswold - Chester, CT

Witnesses:
Samuel A. Wright
Henry W. Churchill

Patent Dates:
Applied: Jun. 28, 1873
Granted: Sep. 23, 1873

Patent Pictures:
USPTO pdf tiff
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Description:
A combination of looped bit shanks and a separable handle allow this gimlet to use various bits and be disassembled for storage/transport. Claimed as an improvement of his previous gimlet patent 133440.

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