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US Patent: 90,195
Improvement in hollow auger
Patentee:
H. J. Rickard (exact or similar names) - Rochester, NY

USPTO Classifications:
30/495

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
J. Chase
James Lorenzo Gage
Patent Dates:
Granted: May 18, 1869

Patent Pictures:
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