FR757187A - Lampe thermoïonique - Google Patents

Lampe thermoïonique

Info

Publication number: FR757187A
Authority: FR; France
Prior art keywords: thermionic; lamp; thermionic lamp
Prior art date: 1932-05-02
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.)

Compagnie des Lampes

Original Assignee

Compagnie des Lampes

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.)

1932-05-02

Filing date

1933-05-01

Publication date

1933-12-21

1933-05-01 Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes

1933-12-21 Application granted granted Critical

1933-12-21 Publication of FR757187A publication Critical patent/FR757187A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/40—Screens for shielding

FR757187D 1932-05-02 1933-05-01 Lampe thermoïonique Expired FR757187A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB757187X		1932-05-02

Publications (1)

Publication Number	Publication Date
FR757187A true FR757187A (fr)	1933-12-21

Family

ID=10496618

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR757187D Expired FR757187A (fr)	1932-05-02	1933-05-01	Lampe thermoïonique

Country Status (1)

Country	Link
FR (1)	FR757187A (fr)

1933
- 1933-05-01 FR FR757187D patent/FR757187A/fr not_active Expired

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