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MIBIS MERKANTILA INGENIORSBYRA
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MIBIS MERKANTILA INGENIORSBYRA
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Publication of ES295723A1publicationCriticalpatent/ES295723A1/es
Improvements in or relating to insulators from material having mainly electronic conductivity in particular for indirectly heated cathodes for electric discharge tubes
Improvements in or relating to insulators from material having mainly electronic conductivity in particular for indirectly heated cathodes for electric discharge tubes
Mejoras introducidas en el objeto de la patente pincipal num.225734, por mejoras introducidas en la fabricacion de electrodos frios y de forma hueca, para aparatos de descarga electrica