US Patent: 118,806 - Improvement in augers


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US Patent: 118,806

Improvement in augers

Patentees:

Edward P. Smith (exact or similar names) - Three Rivers, MI

Robert M. Lafferty (exact or similar names) - Three Rivers, MI

USPTO Classifications:

408/207

Tool Categories:

woodworking tools : hand drills : drill bits : hollow bits

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

James I. Day

H. S. Sprague

Patent Dates:
Granted:	Sep. 12, 1871

Patent Pictures:

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Description:

"The nature of this invention relates to certain improvement in the construction of hollow augers for boring pump-logs and other long wooden cylinders..."