| 100A21-120V | 56589 | 21ST CENTURY ENTERPRISES INC |
| 100A21/CL-120 | 06172 | MARVEL LAMP CO INC |
| 100A21CL120V | 08108 | LAMP INDUSTRY FOR USE WITH INDUSTRY DESIGNATIONS AND ABBREVIATIONS FOR LAMPS |
| 100A21CL | 58325 | U S LIGHTING CORP |
| 100A21/CL-120V | 88204 | GTE PRODUCTS CORP SYLVANIA MINIATURE LIGHTING DIV |
| 100A21CL120V | 89904 | WESTINGHOUSE ELECTRIC CORP LAMPS DIV |
| 100ACL120V | 58854 | GTE PRODUCTS CORP LIGHTING PRODUCTS GROUP |
| WL101 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |