FR1067196A - Système de commande d'un dérailleur à double changement de vitesse adaptable sur les cocottes des freins d'une bicyclette à guidon de course
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Système de commande d'un dérailleur à double changement de vitesse adaptable sur les cocottes des freins d'une bicyclette à guidon de course
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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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FR1067196D1952-11-271952-11-27Système de commande d'un dérailleur à double changement de vitesse adaptable sur les cocottes des freins d'une bicyclette à guidon de course
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(fr)
Mécanisme de transmission à engrenages, à changement de vitesse finement graduel, pour l'obtention de mouvements d'avancement sur les bobineuses