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Publication of FR1131785ApublicationCriticalpatent/FR1131785A/fr
E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
E05F13/00—Mechanisms operated by the movement or weight of a person or vehicle
E05F13/04—Mechanisms operated by the movement or weight of a person or vehicle by platforms lowered by the weight of the user
FR1131785D1955-10-031955-10-03Dispositif perfectionné pour l'ouverture automatique de portes de garage et similaires
ExpiredFR1131785A
(fr)