UNITED TECHNOLOGIES
Electronic controls for use with elevators, lifts, escalators, moving walkways, machine-roomless hydraulic elevator systems and related carriers; computer software for control of the operation of elevators, lifts, escalators, moving walkways, machine-roomless hydraulic elevators; computer software for controlling door operations, electrical controllers for door operation and door control, electrical position/velocity sensors for controlling door operation; electronic safety control controls, ...
Cancelled · May 19, 2014 · 79975125 ·