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US Patent: 76,103
Improvement in Wood-Boring Machines
Adjustable Bit for Decorative Work
Patentee:
Almon Roff - Southport, CT

USPTO Classifications:
408/195, 408/86

Tool Categories:
woodworking tools : hand drills : drill bits : adjustable drill bits
woodworking machines : wood drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Daniel Breed
Edm. F. Brown

Patent Dates:
Granted: Mar. 31, 1868

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
Described as especially suitable for circular, ornamental and inlay work.

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