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US Patent: 173,885
Improvement in Hollow Augers
Patentee:
Austin Berry (exact or similar names) - Waterloo, QC Canada

USPTO Classifications:
30/495

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John Fitzgerald
O. P. Bloss

Patent Dates:
Applied: Dec. 31, 1875
Granted: Feb. 22, 1876

Patent Pictures:
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