GB630707A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number: GB630707A
Authority: GB; United Kingdom
Prior art keywords: tubes; bends; relating; electric discharge; junction
Prior art date: 1943-07-26
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

GB758/47A

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.)

Philips Lamps Ltd

Koninklijke Philips NV

Original Assignee

Philips Lamps Ltd

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.)

1943-07-26

Filing date

1947-01-09

Publication date

1949-10-19

1947-01-09 Application filed by Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd

1949-10-19 Publication of GB630707A publication Critical patent/GB630707A/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
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/305—Flat vessels or containers
- H01J61/307—Flat vessels or containers with folded elongated discharge path

Landscapes

Vessels And Coating Films For Discharge Lamps (AREA)

GB758/47A 1943-07-26 1947-01-09 Improvements in or relating to electric discharge tubes Expired GB630707A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL630707X		1943-07-26

Publications (1)

Publication Number	Publication Date
GB630707A true GB630707A (en)	1949-10-19

Family

ID=19788727

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB758/47A Expired GB630707A (en)	1943-07-26	1947-01-09	Improvements in or relating to electric discharge tubes

Country Status (3)

Country	Link
BE (1)	BE456963A (fr)
FR (1)	FR906093A (fr)
GB (1)	GB630707A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4833574A (en) *	1988-03-11	1989-05-23	Galagher P Christopher J	Annular fluorescent lamp

0
- BE BE456963D patent/BE456963A/xx unknown
1944
- 1944-07-26 FR FR906093D patent/FR906093A/fr not_active Expired
1947
- 1947-01-09 GB GB758/47A patent/GB630707A/en not_active Expired

Also Published As

Publication number	Publication date
BE456963A (fr)
FR906093A (fr)	1945-12-21

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