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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
B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
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FR569270D1923-07-311923-07-31Dispositif de transmission de mouvement avec changement de vitesse progressif
ExpiredFR569270A
(fr)