Challenger
Cutler Hammer
Federal Pacific - American
General Electric
Murray - Crouse Hinds
Siemens / ITE
Square D
Wadsworth
Zinsco
Circuit Breakers
Steel Sheets, Rods, Tubes and Bars
C-H (Cutler Hammer Westinghouse)
CHAL (Challenger)
FPE (Federal Pacific American)
GE (General Electric)
ITE (ITE Siemens)
Murray (Murray)
SQD (Square D)
WADS (Wadsworth)
Zinsco (Zinsco)