FR40809E - Perfectionnements aux tubes à décharge électronique et aux moyens d'éviter dans ces tubes la production d'ionisation nuisible
- Google Patents
Perfectionnements aux tubes à décharge électronique et aux moyens d'éviter dans ces tubes la production d'ionisation nuisible
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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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Publication date
Priority claimed from US484067Aexternal-prioritypatent/US1967869A/en
Application filed by Compagnie Francaise Thomson Houston SAfiledCriticalCompagnie Francaise Thomson Houston SA
Application grantedgrantedCritical
Publication of FR40809EpublicationCriticalpatent/FR40809E/fr
FR40809D1926-10-201931-09-23Perfectionnements aux tubes à décharge électronique et aux moyens d'éviter dans ces tubes la production d'ionisation nuisible
ExpiredFR40809E
(fr)