74304952
Aug 17, 1992
Nov 18, 1997
elevators, escalators, moving walkways, conveyors and conveyor belts; and structural parts thereof
Machineryelectronic equipment and apparatus on board of electrical and hydraulic elevators and escalators, moving walkways, conveyors and conveyor belts for recording teletransferring and processing of alarm signals and status signals for generating telediagnostic statistics output and display of instructions and for general monitoring an communications
Electrical and Scientific Apparatus