| 11739A | U4290 | G E C MARCONI S3I LTD COMBAT SYSTEMS IVISION |
| 11739A-N | K3762 | FERRANTI NAVAL SYSTEMS DIV OF GEC MARCONI |
| 13998A | K3762 | FERRANTI NAVAL SYSTEMS DIV OF GEC MARCONI |
| 13998A-H | K3762 | FERRANTI NAVAL SYSTEMS DIV OF GEC MARCONI |
| 9959A | K3762 | FERRANTI NAVAL SYSTEMS DIV OF GEC MARCONI |
| 9959A-3 | K3762 | FERRANTI NAVAL SYSTEMS DIV OF GEC MARCONI |
| A30/75126/51 | K1159 | BAE SYSTEMS INTEGRATED SYSTEM TECHNOLOGIES LTD |
| B30/75126/47 | K1159 | BAE SYSTEMS INTEGRATED SYSTEM TECHNOLOGIES LTD |