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US Patent: RE3,760
Variable crank for boring machine
Patentee:
George C. Taft - Worcester, MA

USPTO Classifications:
144/104

Tool Categories:
woodworking machines : wood drilling and boring : portable timber borers
woodworking machines : joint making machines : portable timber borers

Assignees:
Theodore Mace - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Dec. 14, 1869

Reissue Information:
Reissue of 72,114 (Dec. 10, 1867)

Patent Pictures:
USPTO pdf tiff
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