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| 587-151 | 09150 | AMPEX DATA SYSTEMS CORP COMPUTER PRODUCTS DIV |
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| 446/4/04189/138 | K7034 | ABACO SYSTEMS LIMITED |
| SN74S138N | 01295 | TEXAS INSTRUMENTS INCORPORATED |
| 93S138PC | 07263 | FAIRCHILD SEMICONDUCTOR CORP |
| N74S138B | 18324 | PHILIPS SEMICONDUCTORS INC |
| 800072-000 | 52483 | COMMUNICATION SYSTEMS TECHNOLOGY INC TYLUS SYSTEMS DIV |
| SN74S138N | K0461 | RAYTHEON SYSTEMS LTD WEAPONS SUPPORT GROUP |
| SS32138-1 | K2555 | G E C MARCONI COMMUNICATIONS LTD |