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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
B62M13/00—Transmissions characterised by use of friction rollers engaging the periphery of the ground wheel
FR978432D1948-12-241948-12-24Dispositif de commande de l'embrayage pour bicyclettes munies d'un moteur auxiliaire
ExpiredFR978432A
(fr)