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Publication of FR1122819ApublicationCriticalpatent/FR1122819A/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
FR1122819D1955-04-141955-04-14Dispositif pour ouvrir et fermer automatiquement des portes de garage et autres
ExpiredFR1122819A
(fr)