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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Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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Filing date
Publication date
Application filed by Le Materiel Telephonique Thomson CSFfiledCriticalLe Materiel Telephonique Thomson CSF
Application grantedgrantedCritical
Publication of FR752668ApublicationCriticalpatent/FR752668A/fr
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/50—Thermionic-cathode tubes
H01J17/52—Thermionic-cathode tubes with one cathode and one anode
H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
FR752668D1932-06-251932-06-25Perfectionnements aux tubes électriques à décharge à gaz ou à vapeurs métalliques
ExpiredFR752668A
(fr)