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US Patent: 34,497
Improvement in Hollow Augers
Patentee:
A. B. Hendryx (exact or similar names) - Seymour, CT

USPTO Classifications:
30/495, 30/524

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Richardson Gawley
James Laird
Patent Dates:
Granted: Feb. 25, 1862

Patent Pictures:
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