| 2163-234 | K0663 | FERRANTI TECHNOLOGIES LTD |
| 2163-234 | K8084 | FERRANTI INTERNATIONAL PLC |
| 580512/047 | K0268 | RAYTHEON SYSTEMS LIMITED |
| 21630-234 | K0663 | FERRANTI TECHNOLOGIES LTD |
| 21630-234 | K8084 | FERRANTI INTERNATIONAL PLC |
| 88633-619-535 | U1278 | MINISTRY OF DEFENCE NAVY |
| C0M420-4 | K0100 | MEGGITT (UK) LIMITED |
| ULP163C | K1005 | MINISTRY OF DEFENCE NAVY DIRECTOR GENERAL WEAPONS DIRECTOR OF WEAPONS RESEARCH & DEVELOPMENT UNDERWATER DW |
| BS57 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS57-TABLE 1 | K7766 | BRITISH STANDARDS INSTITUTION |
| X32-B116 | U2879 | INSTRO PRECISION LIMITED |