by devices, e.g. lever arms, affected by the movement of the user

Full Title

Operating mechanisms for wings, operated by the movement or weight of a person or vehicle > by devices, e.g. lever arms, affected by the movement of the user

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES

Subclass:

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