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090 _aTK146 B1/6
245 1 0 _aBasic electricity & electronics:direct current :
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260 _aCrowborough :
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300 _aVideocassette;
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490 0 _aDelmar Thomson Leraning-series5
500 _aVHS/NTSC
650 0 _aElectric engineering
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650 0 _aElectric
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942 _cBK
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999 _c32110
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