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US Patent: 178,288
Improvement in Auger-Handles
Patentee:
George L. Gibson (exact or similar names) - Reno, NV

USPTO Classifications:
81/28

Tool Categories:
woodworking tools : hand drills : auger handles

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Charles T. Bender
James H. Borland

Patent Dates:
Applied: Feb. 29, 1876
Granted: Jun. 06, 1876

Patent Pictures: [ 1 | 2 ]
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Description:
Longitudinal saw-cuts are made on both sides of the square socket, in conjunction with a transverse bolt and lever-handle nut, allow the wooden handles to trap bit shanks of various sizes.

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