| 3136 | 74545 | HUBBELL INC WIRING DEVICE DIV |
| 4200 | 06859 | THOMAS INDUSTRIES INC BENJAMIN ELECTRIC DIV |
| 7972 | 04009 | COOPER INDUSTRIES INC COOPER DISTRIBUTION EQUIPMENT DIV |
| 7972 | 71183 | BRYANT ELECTRIC |
| 7972 | 79500 | WESTINGHOUSE ELECTRIC CORP |
| CATAL0G4200 | 06859 | THOMAS INDUSTRIES INC BENJAMIN ELECTRIC DIV |
| MILL19037TYPE4 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |