FR669205A - Incandescent lamp - Google Patents

Incandescent lamp

Info

Publication number: FR669205A
Authority: FR; France
Prior art keywords: incandescent lamp; incandescent; lamp
Prior art date: 1929-02-06
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

Inventor

Jorgen Hansen

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.)

1929-02-06

Filing date

1929-02-06

Publication date

1929-11-13

1929-02-06 Application filed filed Critical

1929-11-13 Application granted granted Critical

1929-11-13 Publication of FR669205A publication Critical patent/FR669205A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/34—Double wall vessels
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

FR669205D 1929-02-06 1929-02-06 Incandescent lamp Expired FR669205A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR669205T		1929-02-06

Publications (1)

Publication Number	Publication Date
FR669205A true FR669205A (en)	1929-11-13

Family

ID=9015603

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR669205D Expired FR669205A (en)	1929-02-06	1929-02-06	Incandescent lamp

Country Status (1)

Country	Link
FR (1)	FR669205A (en)

1929
- 1929-02-06 FR FR669205D patent/FR669205A/en not_active Expired

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