|
GB190811806A
|
|
An Improved Alternating Current Electro Magnet.
|
|
CA124330A
|
|
Electro-magnet
|
|
US863296A
|
|
Electromagnet.
|
|
GB190427000A
|
|
Improvements in Electric Switches and in Electro Magnets therefor
|
|
US758323A
|
|
Friction-gear.
|
|
US744773A
|
|
Electromagnet.
|
|
CA83855A
|
|
Controller for alternating current motors
|
|
CA84422A
|
|
Electric controller
|
|
GB190314542A
|
|
Improvements in Controlling Devices for Electric Motors
|
|
GB190314555A
|
|
Improvements in Controlling Devices for Electric Motors
|
|
GB190314558A
|
|
Improvements in and relating to Electro Magnets
|
|
US733551A
|
|
Electric controller.
|
