|
US2771522A
|
|
Disconnecting switch
|
|
US2717939A
|
|
Current interrupting device
|
|
US2658976A
|
|
Air circuit interrupter
|
|
US2658977A
|
|
Electrical load break switch
|
|
US2547156A
|
|
Mounting means for circuit breakers or the like
|
|
US2455998A
|
|
Electrical load breaking device
|
|
US2506546A
|
|
Circuit breaker
|
|
US2430510A
|
|
Electrical bus construction
|
|
US2360774A
|
|
Rotary disconnect switch
|
|
US2295175A
|
|
Switch construction
|
|
US2288134A
|
|
Switch
|
|
US2245342A
|
|
Electric control system
|
|
US2229504A
|
|
Switch construction
|
|
US2310787A
|
|
Friction brake mechanism for motor driven electric switches and the like
|
|
US2157174A
|
|
Switch
|
|
US2172201A
|
|
Switch
|
|
US2225055A
|
|
Circuit interrupting means
|
|
US2154665A
|
|
Switch
|
|
US2096033A
|
|
Electric switch
|
|
US2013437A
|
|
Clamp
|
