Regl. 1277, art. 111 dup4
4a
Cite as Reglamento Núm. 1277, Art. 111 dup4
Hoistway-door combination mechanical locks and
electric contacts are permitted only for power freight
elevators as specified in Rule 111.1b, and for dumbwaiters.
111. - Operation of the Driving Machine with a Hoist-