responsive to devices carried by persons or objects, e.g. magnets or reflectors

Full Title

Power-operated mechanisms for wings > with automatic actuation > responsive to movement or presence of persons or objects > responsive to devices carried by persons or objects, e.g. magnets or reflectors

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