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| 005 | 20250425161137.0 | ||
| 008 | 250425s9999 xx 000 0 und d | ||
| 041 | _aeng | ||
| 082 | _a621.381512 | ||
| 100 | _aEASTMAN, AUSTIN V. | ||
| 245 | 0 | _aFUNDAMENTALS OF VACUUM TUBES | |
| 250 | _a3TH ED. | ||
| 260 |
_aEstados Unidos _bMCGRAW HILL _c1950 |
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| 260 | _aNEW YORK | ||
| 300 | _a644 | ||
| 942 | _c01 | ||
| 010 | _a13663 | ||
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_c203295 _d203295 |
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