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US Patent: 110,951
Milling Machine
Improvement in Back Centers for Milling Machines
Amos H. Brainard - Hyde Park, MA

USPTO Classifications:

Tool Categories:
metalworking machines : milling machines : milling machine accessories


Union Vise Co. - Hyde Park, MA
Brainard Milling Machine Co. - Hyde Park, MA

Alban Andrew
Francis Gardner
Birges Bark
Oscar A. Perrigo

Patent Dates:
Granted: Jan. 17, 1871

Patent Pictures:
USPTO pdf tiff
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VintageMachinery.org entry for Brainard Milling Machine Co.
Alban Andrew - patent attorney

The object of my invention is to provide a simple and convenient back center, or support for one end of arbors, reamers, or .other work required to be supported at each end on Centers, which shall always be in line with the arbor or other work, be the same higher or lower, or inclined to a horizontal line.

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