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All Patents in class 122/441
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
115,928Jun. 13, 1871G. BradfordImprovement in Steam Enginessteam engines
162,120Apr. 13, 1875J.E. TaylorSteam Engine Cylindersteam engine cylinders
641,762Jan. 23, 1900H.C. ClayCompound Engine steam engines
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