FR722976A - Lampe de puissance avec cathode incandescente tubulaire - Google Patents

Lampe de puissance avec cathode incandescente tubulaire

Info

Publication number: FR722976A
Authority: FR; France
Prior art keywords: power lamp; tubular incandescent; incandescent cathode; cathode; tubular
Prior art date: 1931-09-18
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.)

Siemens and Halske AG

Siemens Corp

Original Assignee

Siemens and Halske AG

Siemens Corp

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.)

1931-09-18

Filing date

1931-09-18

Publication date

1932-03-31

1931-09-18 Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG

1932-03-31 Application granted granted Critical

1932-03-31 Publication of FR722976A publication Critical patent/FR722976A/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

FR722976D 1931-09-18 1931-09-18 Lampe de puissance avec cathode incandescente tubulaire Expired FR722976A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR722976T		1931-09-18

Publications (1)

Publication Number	Publication Date
FR722976A true FR722976A (fr)	1932-03-31

Family

ID=9103373

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR722976D Expired FR722976A (fr)	1931-09-18	1931-09-18	Lampe de puissance avec cathode incandescente tubulaire

Country Status (1)

Country	Link
FR (1)	FR722976A (fr)

1931
- 1931-09-18 FR FR722976D patent/FR722976A/fr not_active Expired

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