Chain switching device for bicycles

Chain tightener attachment

Change control device for a bicycle, particularly a mountain-bik

Change device for transmission

Change gear transmission and shift rod interlock therefor

Change gear transmission for motor vehicles, especially for use

Change lever mechanism of a vehicle having vibration absorber

Change lever supporting structure

Change lever supporting structure

Change speed lever apparatus for use in bicycle

Change speed operating apparatus for a tractor

Change speed transmission for motorcycles

Change-speed control apparatus for a bicycle

Change-speed gearbox hand lever connecting device

Change-speed lever apparatus for use in bicycle

Change-speed lever for a bicycle gear

Change-speed maneuvering apparatus incorporated in a vehicle

Change-speed transmission with speed-range selection means for m

Changeable gate plate means for lever control devices

Changing speed in a power transmission