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B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
B62M1/00—Rider propulsion of wheeled vehicles
B62M1/14—Rider propulsion of wheeled vehicles operated exclusively by hand power
Transformation d'un mouvement alternatif lineaire en mouvement rotatif continu par rochet et double cremaillere, et son application a l'entrainement de la roue avant d'un velo