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Patents for J. I. Depew Disc Sharpener Co.
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
780,552Jan. 24, 1905J.I. DepewTire-Upsettertire upsetters
806,244Dec. 05, 1905J.I. DepewDisk-Sharpenersharpeners
878,048Feb. 04, 1908J.I. DepewShearing and Punching Mechanismmetal punching machines
979,831Dec. 27, 1910J.I. DepewDisk-Sharpenersharpeners
1,076,554Oct. 21, 1913J.I. DepewPower Hammerdrop hammers
CA-153,791Feb. 17, 1914J.I. DepewPower Hammerdrop hammers
1,485,486Mar. 04, 1924J.I. DepewPower Hammerdrop hammers
1,668,633May 08, 1928J.I. DepewPlowshare and Cultivator Shovel Straightenershovels
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