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All Patents of Type: washer cutters
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
143,738Oct. 14, 1873H.E. WhippleWasher-Cutterswasher cutters
874,702Dec. 24, 1907E.J. PattonGasket or Washer Cutterwasher cutters
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