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All Patents in class 138/42
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
943,233Dec. 14, 1909J. BoyleExhaust-mufflermufflers
1,680,956Aug. 14, 1928E.H. SimonsenWrenchquick adjust wrenches
2,508,224May 16, 1950F.Y. CarterFlow Restricting Devicerefrigeration apparatus
2,667,186Jan. 26, 1954C.W. St. ClairFlow control device
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