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Patents for William E. Hotchkiss
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
612,946Oct. 25, 1898W.E. HotchkissSupport for drilling-machinesdrill presses
614,866Nov. 29, 1898W.E. HotchkissAutomatic feeding-mechanism for drilling-machinesdrill presses
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