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Patents for John W. Alexander
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
247,987Oct. 04, 1881W.H. BrockChain Wrenchchain and strap wrenches
254,862Mar. 14, 1882W.H. BrockChain Wrenchchain and strap wrenches
270,202Jan. 09, 1883J. CharterGas Enginegas and gasoline engines
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