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FR720784A - Electric discharge lighting device - Google Patents

Electric discharge lighting device

Info

Publication number
FR720784A
FR720784A FR720784DA FR720784A FR 720784 A FR720784 A FR 720784A FR 720784D A FR720784D A FR 720784DA FR 720784 A FR720784 A FR 720784A
Authority
FR
France
Prior art keywords
lighting device
electric discharge
discharge lighting
electric
lighting
Prior art date
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
French (fr)
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.)
Claude Lumiere SA
Original Assignee
Claude Lumiere SA
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.)
Filing date
Publication date
Application filed by Claude Lumiere SA filed Critical Claude Lumiere SA
Application granted granted Critical
Publication of FR720784A publication Critical patent/FR720784A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
FR720784D 1930-11-05 1930-11-05 Electric discharge lighting device Expired FR720784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR720784T 1930-11-05

Publications (1)

Publication Number Publication Date
FR720784A true FR720784A (en) 1932-02-24

Family

ID=9094759

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720784D Expired FR720784A (en) 1930-11-05 1930-11-05 Electric discharge lighting device

Country Status (3)

Country Link
US (1) US1972183A (en)
FR (1) FR720784A (en)
GB (1) GB377218A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7811351A (en) * 1978-11-17 1980-05-20 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.

Also Published As

Publication number Publication date
GB377218A (en) 1932-07-18
US1972183A (en) 1934-09-04

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