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Publication of FR821305ApublicationCriticalpatent/FR821305A/fr
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
B62M3/00—Construction of cranks operated by hand or foot
B62M3/02—Construction of cranks operated by hand or foot of adjustable length
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FR821305D1936-04-301937-04-29Dispositif pour modifier les conditions de propulsion des bicyclettes ou autres
ExpiredFR821305A
(fr)