|
CA189095A
|
|
Electricity switch for trains
|
|
CA176684A
|
|
Magnetic controlling device
|
|
GB191507177A
|
|
Improvements in Switching-over Systems for Electrical Lighting Installations for Railway Trains and the like.
|
|
GB191501360A
|
|
Improvements in Inverted Incandescence Gas Lamps.
|
|
GB191424537A
|
|
Improvements in and relating to Electromagnets.
|
|
US1161819A
|
|
Magnetic controlling device.
|
|
US1107196A
|
|
Drive mechanism.
|
|
GB191102719A
|
|
Improvements in Regulating Electric Tensions.
|
|
GB190828120A
|
|
Improvements in Appliances for the Electric Lighting and Heating of Vehicles.
|
|
GB190927937A
|
|
Improvements in Controlling Appliances for the Electric Lighting of Vehicles.
|
|
GB190806228A
|
|
Improvements in and relating to the Electric Lighting and Heating of Vehicles.
|
|
US1016825A
|
|
Apparatus for producing a constant voltage with variable speed.
|
|
GB190714059A
|
|
A Voltage-regulated System of Electrically Lighting and Heating Vehicles.
|
|
GB190713129A
|
|
A Voltage-regulated System for the Electric Lighting and Heating of Vehicles.
|
|
US994510A
|
|
Electric car-lighting system.
|
|
CA304486A
|
|
Voltage regulating apparatus
|
