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| 082 | _a621.382 ELE'H | ||
| 100 |
_aHOUSE, WILLIAM C _974967 |
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| 245 | _aELECTRONICS COMMUNICATIONS SYSTEMS | ||
| 260 |
_aNEWYORK _bPBI _c1980 |
||
| 300 | _a240P | ||
| 650 |
_aTELECOMMUNICATION DATA TRANSMISSION SYSTEMS COMPUTER NETWORKS _974968 |
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| 942 | _cBK | ||
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_c580470 _d580470 |
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