CATHODES (ELECTRICAL ENGINEERING)
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BTLAMPS, DISCHARGE TUBES, CATHODES, ELECTRODES, IGNITING DEVICES FOR DISCHARGE TUBES (ELECTRICAL ENGINEERING)
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UDC621.3.032.21
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Descriptor GERKATHODEN (ELEKTROTECHNIK)
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Descriptor ENGCATHODES (ELECTRICAL ENGINEERING)
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Descriptor FRECATHODES (ÉLECTROTECHNIQUE)
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NTMIM CATHODES (ELECTRICAL ENGINEERING)