|
US835407A
|
|
Alternating-current machine.
|
|
US852690A
|
|
Remote control device for electric switches.
|
|
US964619A
|
|
Attachment-plug.
|
|
US863185A
|
|
Protective device for electric circuits.
|
|
US823984A
|
|
Locking and tripping device for switches.
|
|
US824055A
|
|
Insulator.
|
|
US792101A
|
|
Means for protection against reversal of energy.
|
|
US820978A
|
|
Electrical measuring instrument.
|
|
US835441A
|
|
Signaling system.
|
|
US876943A
|
|
Dynamo-electric machine.
|
|
US787319A
|
|
Protective device for electric apparatus.
|
|
US809825A
|
|
Electric meter.
|
|
US809787A
|
|
Alternating-current motor.
|
|
US811265A
|
|
Protection against reversal of energy.
|
|
US803832A
|
|
Motor-operated switch.
|
|
US837023A
|
|
Circuit-breaker.
|
|
US761745A
|
|
Switch for electric circuits.
|
|
US771344A
|
|
Switch for electric circuits.
|
|
US771347A
|
|
Control system for parallel lines.
|
|
US795182A
|
|
Protective system for parallel lines.
|
