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BANQUE POUR ENTPR S ELECTR
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BANQUE POUR ENTPR S ELECTR
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Publication of FR913243ApublicationCriticalpatent/FR913243A/en
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/02—Details
H01J17/04—Electrodes; Screens
FR913243D1944-08-061945-08-08
Method for strengthening the action of a very weak electric current and apparatus for its application
ExpiredFR913243A
(en)