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US Patent: 63,392
Improvement in Boring Bits
Patentee:
Melvin Jincks - Danville, NY

USPTO Classifications:
408/192

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

Assignees:
None

Manufacturer:
M. Jincks - Livingston, NY

Witnesses:
S. D. White
O. Tousey

Patent Dates:
Granted: Apr. 02, 1867

Patent Pictures: [ 1 | 2 | 3 ]
USPTO pdf tiff
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Description:
Combines a depth gauge, cutter, marker (scores the outside of the hole), and a bit (gimlet) which all independently adjustable and are secured by screws.

Known example is marked: M. JINCKS PAT'D APR 2, 1867. Jincks is not listed in DAT.

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