US Patent: 605,407 - Countersinker


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US Patent: 605,407

Countersinker

Patentee:

Charles Dumaw, Jr. (exact or similar names) - Cheboygan, MI

USPTO Classifications:

408/188, 408/189

Tool Categories:

woodworking tools : hand drills : drill bits : countersinks

woodworking tools : hand drills : drill bits : adjustable drill bits

Assignees:

Charles Dumaw, Jr. - Cheboygan, MI

Isaac Piercy - Cheboygan, MI

Manufacturer:

Not known to have been produced

Witnesses:

F. N. Klingensmith

Patent Dates:
Applied:	Dec. 23, 1897
Granted:	Jun. 07, 1898

Patent Pictures:

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