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US Patent: 1,753,590
Workholder for bar-grinding machines
Frederic K. Benedict - Big Rapids, MI

USPTO Classifications:
451/387, 451/401

Tool Categories:

Covel-Hanchett Co. - Big Rapids, MI

Not known to have been produced


Patent Dates:
Applied: Dec. 27, 1927
Granted: Apr. 08, 1930

Patent Pictures:
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"A locomotive guide bar is a heavy piece of work quite wide and several feet long, and its working fact, on which the engine cross head is to slide, must be ground to a true plane and it must also be parallel with the faced pads or bearing surfaces that are provided on the back face of the bar near its ends..."

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