| 12296038 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
| 12296038 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
| 1818 | 08108 | LAMP INDUSTRY FOR USE WITH INDUSTRY DESIGNATIONS AND ABBREVIATIONS FOR LAMPS |
| 1818 | 08806 | GENERAL ELECTRIC CO MINIATURE LAMP PRODUCTS DEPT LIGHTING BUSINESS GROUP |
| 1818 | 34165 | INTER-MARKET INC |
| 1818 | 62607 | PHILIPS ELECTRONICS NORTH AMERICA CORPORATION DBA PHILIPS LIGHTING DIV PHILIPS LIGHTING COMPANY |
| 87-0704 | 19397 | BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION INC. |
| 5501W21 | 56365 | SCHNEIDER ELECTRIC USA, INC. |
| LTX1818 | 61342 | LAMPTRONIX CO LTD |
| 87-0704 | 63409 | TREMETRICS INC DIV OF FINNIGAN |
| AN3121-1818 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
| 849546-5 | 95301 | RCA CORP CONSUMER ELECTRONICS |
| 3193340R1 | F5923 | FURUKAWA EQUIPEMENT |
| 1818 | R1120 | SATAIR A/S |
| PL1818 | 58451 | PRECISION LAMP INC |
| ML-1818X | 61951 | MICRO LAMPS INC. |