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All Patents in class 60/531
Patents 1 - 4 of 4
First set of recordsLast set of records
92XJan. 16, 1795J. PerkinsMachine for cutting nailsnail making machines
419,805Jan. 21, 1890C.W. WeissThermo Dynamic Motor
451,824May 05, 1891L. KesslerHydropneumatic Enginesteam motors
2,433,493Dec. 30, 1947J.L. TurnerElectrically Heated Bellows Motorvalves
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