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US Patent: 810,602
Boring-tool
Patentee:
Charles Baar - Grand Rapids, MI

USPTO Classifications:
144/219, 408/189

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

Assignees:
None

Manufacturer:
Charles Baar - Grand Rapids, MI

Witnesses:
Luther V. Moulton
Georgiana Chace

Patent Dates:
Applied: Feb. 06, 1905
Granted: Jan. 23, 1906

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
This countersink was featured in the 1925 Woodworkers Tool Works catalog.

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