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GLIMMLAMPEN DEUTSCHE GmbH
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GLIMMLAMPEN DEUTSCHE GmbH
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Application filed by GLIMMLAMPEN DEUTSCHE GmbHfiledCriticalGLIMMLAMPEN DEUTSCHE GmbH
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Publication of FR539096ApublicationCriticalpatent/FR539096A/en
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/38—Cold-cathode tubes
H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
FR539096D1921-05-191921-08-05
Electrode system for vacuum tubes
ExpiredFR539096A
(en)