Bicycle hub transmission with a mechanism for stopping...

Bike inner derailleur

Coaxial-type differential transmission apparatus

Control system for a working apparatus for use on a bicycle

Differential transmission apparatus

Electrical tool with a multi-stage gear transmission

Epicyclic change gear system

Final drive locking mechanism for a disengageable drive coupling

Freeing mechanism for motorized gear reducer

Gear arrangement

Gear motor with fail-safe device

Gear reducer

Gearbox for motor vehicles

Hypocycloidal gear train for varying the speed between two...

Mechanical shiftable three speed planetary transmission

Method and apparatus for selective engagement and...

Multi-speed drive hub with a separate mounting ring for the plan

Multi-speed gear hub

Multi-speed transmission for electrical power tools

Multi-speed wheel hub for automotive vehicles