B62M 3/04

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
6253639 Extensible crankNov 19, 97Jul 03, 01Not available
4807491 Pedal crank as well as a pedal crank drive for bicycles or the like and a mounting for such a pedal crank driveNov 21, 86Feb 28, 89STS POWER PEDAL CORP. AND WORLD POWER BIKE INC.