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US Patent: 581,677
Expanding Auger
Bit for Flared Holes
Patentee:
Andrew Lee - St. Paul, MN

USPTO Classifications:
408/26, 82/1.5

Tool Categories:
woodworking tools : hand drills : drill bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. E. Adams
C. N. Woodward

Patent Dates:
Applied: Mar. 18, 1896
Granted: Apr. 27, 1897

Patent Pictures:
USPTO pdf tiff
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