FR836842A - Electric gas discharge tubes - Google Patents

Electric gas discharge tubes

Info

Publication number: FR836842A
Authority: FR; France
Prior art keywords: gas discharge; discharge tubes; electric gas; electric; tubes
Prior art date: 1937-04-16
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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1937-04-16

Filing date

1938-04-19

Publication date

1939-01-26

1938-04-19 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1939-01-26 Application granted granted Critical

1939-01-26 Publication of FR836842A publication Critical patent/FR836842A/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
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence

FR836842D 1937-04-16 1938-04-19 Electric gas discharge tubes Expired FR836842A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE495551X		1937-04-16

Publications (1)

Publication Number	Publication Date
FR836842A true FR836842A (en)	1939-01-26

Family

ID=6544910

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR836842D Expired FR836842A (en)	1937-04-16	1938-04-19	Electric gas discharge tubes

Country Status (2)

Country	Link
FR (1)	FR836842A (en)
GB (1)	GB495551A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2912190A (en) *	1958-05-05	1959-11-10	Chance Vought Aircraft Inc	Variable-contour airfoil

1938
- 1938-04-13 GB GB11366/38A patent/GB495551A/en not_active Expired
- 1938-04-19 FR FR836842D patent/FR836842A/en not_active Expired

Also Published As

Publication number	Publication date
GB495551A (en)	1938-11-15

Similar Documents

Publication	Publication Date	Title
FR840303A (en)	1939-04-24	Gas turbines
FR835633A (en)	1938-12-27	Improvements to electric discharge tubes
FR834094A (en)	1938-11-10	Electric discharge tube
FR855943A (en)	1940-05-23	Improvements made to electric discharge tubes
FR834767A (en)	1938-12-01	Discharge tube
FR837898A (en)	1939-02-22	Electric discharge tube
BE427227A (en)	1938-04-30	Electric discharge tubes
FR838493A (en)	1939-03-07	Electric discharge tubes
FR834122A (en)	1938-11-14	Electric discharge tube
FR836842A (en)	1939-01-26	Electric gas discharge tubes
FR836640A (en)	1939-01-23	Gas electric discharge tube
FR836666A (en)	1939-01-24	Gas electric discharge tube
FR840473A (en)	1939-04-26	Electric discharge tube
FR843532A (en)	1939-07-05	Discharge tube
FR838557A (en)	1939-03-09	Electric discharge tube
FR841800A (en)	1939-05-26	Electric discharge tube
FR839201A (en)	1939-03-29	Gas tap
FR838011A (en)	1939-02-24	Gas-filled electric discharge tubes
FR833450A (en)	1938-10-21	Electric discharge tubes
FR841828A (en)	1939-05-31	Improvements to electric discharge tubes
FR852078A (en)	1940-01-23	Electric discharge tubes
FR836466A (en)	1939-01-18	Electric discharge tube, gas atmosphere
FR840553A (en)	1939-04-27	Electric discharge tube
FR837879A (en)	1939-02-22	Electric discharge tube
FR841963A (en)	1939-06-02	Electric discharge tube