Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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International Standard Electric Corp
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International Standard Electric Corp
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Application filed by International Standard Electric CorpfiledCriticalInternational Standard Electric Corp
Application grantedgrantedCritical
Publication of FR951024ApublicationCriticalpatent/FR951024A/fr
H01J21/06—Tubes with a single discharge path having electrostatic control means only
H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
H01J21/14—Tubes with means for concentrating the electron stream, e.g. beam tetrode
FR951024D1944-07-081947-08-05Appareils à décharge électronique du type à faisceaux
ExpiredFR951024A
(fr)