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GB1212834A
|
|
Improvements in or relating to railway vehicle bogies
|
|
US3367454A
|
|
Hydraulic damping devices
|
|
GB1124357A
|
|
Improvements in hydraulic damping devices
|
|
GB1083260A
|
|
Improvements in or relating to lift control systems
|
|
GB1031967A
|
|
Improvements in or relating to escalators
|
|
US3225869A
|
|
Logical elevator control system using minimum logical components
|
|
DE1159506B
|
|
Method for producing logic circuits with a prefabricated assembly unit
|
|
GB989629A
|
|
Improvements in or relating to electrical circuit assemblies
|
|
ES267870A1
|
|
Improvements in the construction of inductive emitters without contacts (Machine-translation by Google Translate, not legally binding)
|
|
US3075617A
|
|
Safety means for the door of an elevator
|
|
GB971488A
|
|
Improvements in or modification of safety means for the door of an elevator
|
|
GB971540A
|
|
Improvements in electrical pulse generators
|
|
US3146858A
|
|
Solid-state, clock pulse synchronized, logical control system for elevators
|
|
US3146857A
|
|
Elevator control system
|
|
US3048239A
|
|
Elevator control system
|
|
GB960105A
|
|
Improvements in or relating to elevator control systems
|
|
US3233215A
|
|
Elevator control system having a stepby-step switching device
|
|
DE1167949B
|
|
Control with stepping mechanism, especially for elevators
|
|
US3056470A
|
|
Control system for elevators
|
|
US2989148A
|
|
Elevator control
|
