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Publication date
Application filed by Bbc Brown Boveri & CiefiledCriticalBbc Brown Boveri & Cie
Publication of CH239097ApublicationCriticalpatent/CH239097A/de
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
H03K17/54—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements of vacuum tubes
CH239097D1944-04-211944-04-21Einrichtung zum abwechselnden Aus- und Einschalten von mindestens zwei Gleichstromverbraucherkreisen.
CH239097A
(de)