| 11-2/1-003 | U5171 | THORN E M I ELECTRONICS LTD |
| 11-2/2-003 | U5171 | THORN E M I ELECTRONICS LTD |
| 50-335 | U2164 | JAMES WALKER & CO LTD |
| 70-0680 | U2164 | JAMES WALKER & CO LTD |
| 14-2/5-035 | U5171 | THORN E M I ELECTRONICS LTD |
| 50-335 | U8616 | JAMES WALKER & CO LTD |
| BS1806-335 | K7766 | BRITISH STANDARDS INSTITUTION |
| 70-0700 | U2164 | JAMES WALKER & CO LTD |
| 71-0800 | U2164 | JAMES WALKER & CO LTD |
| A8-SA-039 | U5477 | OFFSHORE MARINE ENGINEERING |
| A8SA040 | U5477 | OFFSHORE MARINE ENGINEERING |
| 70-0680 | U8616 | JAMES WALKER & CO LTD |
| 71-0800 | U8616 | JAMES WALKER & CO LTD |
| 70-0700 | U8616 | JAMES WALKER & CO LTD |
| BSM48-335 | K7766 | BRITISH STANDARDS INSTITUTION |
| JW50-335 | U2164 | JAMES WALKER & CO LTD |
| JW50-335 | U8616 | JAMES WALKER & CO LTD |