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| FS400523 | K1057 | RACAL ACOUSTICS LIMITED |
| SSX66 | K1071 | SIEMENS COMMUNICATIONS LTD A MANAGEMENT COMPANY OF SIEMENS PLC |
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| FS400523 | K3926 | RACAL ACOUSTICS LTD |
| BS57 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS57-TABLE 1 | K7766 | BRITISH STANDARDS INSTITUTION |
| Z2ZB10347 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO |
| CAT 3270 | U2089 | NICE CTI SYSTEMS UK LTD |