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Application filed by Lorenz C AgfiledCriticalLorenz C Ag
Publication of CH207146ApublicationCriticalpatent/CH207146A/de
H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
H01J29/84—Arrangements for removing or diverting unwanted particles, e.g. for negative ions or fringing electrons; Arrangements for velocity or mass selection
CH207146D1938-02-071939-02-04Anordnung mit Braunscher Röhre mit Hochvakuum, insbesondere für Fernsehzwecke.
CH207146A
(de)