70210 ⎘
Construction of cranks operated by hand or foot of adjustable length
Sub-classes:ADJUSTABLE BIKE
#2Pedal cycle apparatus
#3CRANK WITH ADJUSTABLE BEARING HANDLE AND ADAPTER
#4Bicycle pedal and crank system that is transformable into fixed foot pegs
#5Devices and methods for overhead cranks
#6Stationary cycling pedal crank having an adjustable length
#7TRIPLE CONNECTION-STRUCTURED CRANK ARM EQUIPPED WITH BICYCLE PEDAL
#8Collapsible connected crank having internal pressure springs
#9Cycling aid
#10Bicycle driving device
#11Crank mechanism for bicycles
#12Length adjustable bicycle crank
#13Interlocking guide tracks for elliptical bike and method of use
#14Adjustable pedal system for exercise bike
#15Crank with clutch and coupler
#16Pedal drive
#17Pedal stroke adjuster for bicycles or the like