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024 _a59483
037 _cTextual
040 _aCSL
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041 _aeng
082 _aD65, J3
100 _aHappell George E
245 0 _aEngineering electronics
260 _c1953
300 _ap.
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650 _aElectronics
700 _a Hesselberth William M
942 _hD65, J3
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