Procedure for controlling a display and display apparatus

Procedure for starting an elevator

Procedure for the determination of message identifiers in...

Procedure for the tuning of the position controller of an...

Procedure for upgrading the control system of a bank of...

Process and apparatus for controlling a hydraulic lift

Program computer for elevator system

Progressive safety

Pulley arrangement for elevators

Pulse-supervised multi-vehicle transportation system

Pulse-supervised multi-vehicle transportation system

Pulse-supervised transportation systems

Push button assembly

Push button panel for an elevator

Queue based elevator dispatching system using peak period...

Queueing controls for a group of elevators

Quick-coupling/mounting system for elevator guides

Rack and pinion elevator with multiple motor drive

Rack and pinion hoist

Rack and pinion lift system