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| 59-3PT1 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| PC76506-14 | K0991 | MARCONI COMMUNICATION SYSTEMS LTD |
| R30-9708-50 | K0991 | MARCONI COMMUNICATION SYSTEMS LTD |
| 6708913A4 | K7806 | G E C COMPUTER SERVICES LTD |
| E71-030-030-291 | K7806 | G E C COMPUTER SERVICES LTD |