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All Patents in class 474/46
Patents 1 - 6 of 6
Number	Title	Classification(s)
2,256,114	Variable speed drive with multiple belts	474/28, 474/33, 474/35, 474/46
2,382,935	Variable Speed Drive Mechanism	474/26, 474/39, 474/46
2,475,954	Variable speed pulley	474/37, 474/46
2,714,313	Variable pitch pulley	474/28, 474/46
2,893,253	Variable pitch pulley mechanism	474/37, 474/46
3,154,959	Variable speed drive	192/56.1, 474/37, 474/46

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