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US Patent: 72,114
Improvement in variable crank for boring-machines
George C. Taft - Worcester, MA

USPTO Classifications:
144/104, 74/594.3

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

Theodore Mace - Sing Sing, NY

Not known to have been produced

Rubin Carpenter
George C. Taft, Jr.

Patent Dates:
Granted: Dec. 10, 1867

Reissue Information:
Reissued as RE3,760 (Dec. 14, 1869)

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for George C. Taft

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