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US Patent: 117,082
Improvement in wood-boring tools
Patentee:
Joseph J. Kraus - Menasha, WI

USPTO Classifications:
408/219, 408/224

Tool Categories:
woodworking tools : hand drills : drill bits : tapered reamers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. Trilling
William F. Bauer

Patent Dates:
Granted: Jul. 18, 1871

Patent Pictures:
USPTO pdf tiff
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