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All Patents in class 242/413.7
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,662,660Mar. 13, 1928H.C. ClayController for Variable Speed Transmission industrial machine speed and direction changing mechanisms
1,663,493Mar. 20, 1928H.C. ClayControl for Variable Speed Mechanism industrial machine speed and direction changing mechanisms
3,977,621Aug. 31, 1976H.W. HuffmanDifferential driven rewinder-unwinder
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