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US Patent: 627,659
Expanding Auger
Patentee:
Franklin B. Spry (exact or similar names) - Plymouth, Luzerne County, PA

USPTO Classifications:
175/384, 175/388, 175/392, 175/398, 76/108.2

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 28, 1898
Granted: Jun. 27, 1899

Patent Pictures:
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