FR948894A - Perfectionnements aux tubes à décharge - Google Patents

Perfectionnements aux tubes à décharge

Info

Publication number: FR948894A
Authority: FR; France
Prior art keywords: discharge tubes; tubes; discharge
Prior art date: 1947-06-26
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.): Expired

Application number

Other languages

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.)

Thales SA

Original Assignee

CSF Compagnie Generale de Telegraphie sans Fil SA

Priority date (The priority date 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 date listed.)

1947-06-26

Filing date

1947-06-26

Publication date

1949-08-12

1947-06-26 Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA

1949-08-12 Application granted granted Critical

1949-08-12 Publication of FR948894A publication Critical patent/FR948894A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

FR948894D 1947-06-26 1947-06-26 Perfectionnements aux tubes à décharge Expired FR948894A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR948894T		1947-06-26

Publications (1)

Publication Number	Publication Date
FR948894A true FR948894A (fr)	1949-08-12

Family

ID=9474297

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR948894D Expired FR948894A (fr)	1947-06-26	1947-06-26	Perfectionnements aux tubes à décharge

Country Status (1)

Country	Link
FR (1)	FR948894A (fr)

1947
- 1947-06-26 FR FR948894D patent/FR948894A/fr not_active Expired

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