FR732009A - Electric lighting method and lighting devices applying this method - Google Patents

Electric lighting method and lighting devices applying this method

Info

Publication number: FR732009A
Authority: FR; France
Prior art keywords: lighting; devices applying; electric; lighting devices; electric lighting
Prior art date: 1931-12-22
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

French (fr)

Inventor

Daniel Soreau

Henri Spindler

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.)

1931-12-22

Filing date

1931-12-22

Publication date

1932-09-12

1931-12-22 Application filed filed Critical

1932-09-12 Application granted granted Critical

1932-09-12 Publication of FR732009A publication Critical patent/FR732009A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component

FR732009D 1931-12-22 1931-12-22 Electric lighting method and lighting devices applying this method Expired FR732009A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR732009T		1931-12-22

Publications (1)

Publication Number	Publication Date
FR732009A true FR732009A (en)	1932-09-12

Family

ID=9120403

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR732009D Expired FR732009A (en)	1931-12-22	1931-12-22	Electric lighting method and lighting devices applying this method

Country Status (2)

Country	Link
BE (1)	BE393077A (en)
FR (1)	FR732009A (en)

0
- BE BE393077D patent/BE393077A/xx unknown
1931
- 1931-12-22 FR FR732009D patent/FR732009A/en not_active Expired

Also Published As

Publication number	Publication date
BE393077A (en)

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