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US Patent: 158,090
Improvement in Augers
Auger with Removable Tip
Patentee:
Charles F. King (exact or similar names) - Covington, PA

USPTO Classifications:
408/214, 408/233

Tool Categories:
woodworking tools : hand drills : drill bits : auger bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
David A. Graves
G. H. Coe

Patent Dates:
Applied: May 23, 1874
Granted: Dec. 22, 1874

Patent Pictures: [ 1 | 2 ]
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Description:
Tips are registered by fitting around the lead screw, and held securely by undercut shoulders and screws. Tips can be replaced, if damaged, or different sized tips can be utilized.

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