GB506469A - Improvements in and relating to high-pressure metal-vapour electric discharge tubes - Google Patents

Improvements in and relating to high-pressure metal-vapour electric discharge tubes

Info

Publication number: GB506469A
Authority: GB; United Kingdom
Prior art keywords: per cent; seal; conductor; tube; gms
Prior art date: 1937-07-13
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

GB20556/38A

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.)

1937-07-13

Filing date

1938-07-11

Publication date

1939-05-30

1938-07-11 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1939-05-30 Publication of GB506469A publication Critical patent/GB506469A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/32—Seals for leading-in conductors

Landscapes

Lasers (AREA)
Gas-Filled Discharge Tubes (AREA)
Vessels And Coating Films For Discharge Lamps (AREA)

GB20556/38A 1937-07-13 1938-07-11 Improvements in and relating to high-pressure metal-vapour electric discharge tubes Expired GB506469A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE840586X		1937-07-13

Publications (1)

Publication Number	Publication Date
GB506469A true GB506469A (en)	1939-05-30

Family

ID=6546559

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB20556/38A Expired GB506469A (en)	1937-07-13	1938-07-11	Improvements in and relating to high-pressure metal-vapour electric discharge tubes

Country Status (3)

Country	Link
BE (1)	BE429097A (fr)
FR (1)	FR840586A (fr)
GB (1)	GB506469A (fr)

0
- BE BE429097D patent/BE429097A/xx unknown
1938
- 1938-07-11 GB GB20556/38A patent/GB506469A/en not_active Expired
- 1938-07-12 FR FR840586D patent/FR840586A/fr not_active Expired

Also Published As

Publication number	Publication date
BE429097A (fr)
FR840586A (fr)	1939-04-27

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