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Publication of FR450455ApublicationCriticalpatent/FR450455A/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
E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
E05F17/004—Special devices for shifting a plurality of wings operated simultaneously for wings which abut when closed
FR450455D1912-11-121912-11-12Dispositif pour commander simultanément les deux battants d'une porte
ExpiredFR450455A
(fr)