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Patents for E. T. Ketcham
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
822,017May 29, 1906J. RoemerPipe Wrenchchain and strap wrenches
871,958Nov. 26, 1907J. RoemerPipe Wrenchchain and strap wrenches
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