FR517023A - Polyphase incandescent electric lamp - Google Patents

Polyphase incandescent electric lamp

Info

Publication number: FR517023A
Authority: FR; France
Prior art keywords: polyphase; electric lamp; incandescent electric; incandescent; lamp
Prior art date: 1913-11-26
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

FR517023A

Other languages

French (fr)

Inventor

Ernest Gerard

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.)

Individual

Original Assignee

Individual

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.)

1913-11-26

Filing date

1920-06-11

Publication date

1921-04-29

1920-06-11 Application filed by Individual filed Critical Individual

1921-04-29 Application granted granted Critical

1921-04-29 Publication of FR517023A publication Critical patent/FR517023A/en

Status Expired legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp

FR517023A 1913-11-26 1920-06-11 Polyphase incandescent electric lamp Expired FR517023A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BE517023X		1913-11-26

Publications (1)

Publication Number	Publication Date
FR517023A true FR517023A (en)	1921-04-29

Family

ID=3871227

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR517023A Expired FR517023A (en)	1913-11-26	1920-06-11	Polyphase incandescent electric lamp

Country Status (1)

Country	Link
FR (1)	FR517023A (en)

1920
- 1920-06-11 FR FR517023A patent/FR517023A/en not_active Expired

Similar Documents

Publication	Publication Date	Title
FR517023A (en)	1921-04-29	Polyphase incandescent electric lamp
CH65018A (en)	1914-05-16	Incandescent electric lamp
FR426968A (en)	1911-07-22	Incandescent electric lamp
FR460062A (en)	1913-11-22	Incandescent electric armature
FR432187A (en)	1911-11-30	Incandescent electric lamp
FR426686A (en)	1911-07-12	Incandescent electric lamp
FR16323E (en)	1913-01-07	Incandescent electric lamp
FR437567A (en)	1912-04-24	Incandescent electric lamp
CH54571A (en)	1912-06-01	Incandescent electric lamp
CH61332A (en)	1913-09-16	Incandescent electric lamp
FR475051A (en)	1915-04-09	Incandescent removable electric lamp
CH56939A (en)	1912-12-02	Incandescent electric lamp
CH59585A (en)	1913-05-16	Incandescent electric lamp
CH59584A (en)	1913-06-02	Incandescent electric lamp
FR468507A (en)	1914-07-08	Incandescent electric lamp socket
FR512878A (en)	1921-02-02	Gas-filled incandescent electric lamp
CH73419A (en)	1916-10-02	Incandescent electric lamp
FR463159A (en)	1914-02-16	Metal filament electric lamp
FR448107A (en)	1913-01-23	Anodic incandescent electric lamp
FR451456A (en)	1913-04-19	Metal filament incandescent electric lamp
FR474519A (en)	1915-02-24	Improvements to incandescent electric lamps
FR481696A (en)	1917-01-05	Multiple filament electric lamp
CH62018A (en)	1913-11-01	Electric incandescent mercury vapor lamp
FR456366A (en)	1913-08-25	Switch socket for incandescent electric lamps
CH52793A (en)	1912-01-02	Incandescent electric lamp, improved