FR541838A - Improvements to electronic discharge devices - Google Patents

Improvements to electronic discharge devices

Info

Publication number
FR541838A
FR541838A FR541838DA FR541838A FR 541838 A FR541838 A FR 541838A FR 541838D A FR541838D A FR 541838DA FR 541838 A FR541838 A FR 541838A
Authority
FR
France
Prior art keywords
discharge devices
electronic discharge
electronic
devices
discharge
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR541838A publication Critical patent/FR541838A/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
    • H01J61/64—Cathode glow lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
FR541838D 1920-10-01 1921-09-30 Improvements to electronic discharge devices Expired FR541838A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US541838XA 1920-10-01 1920-10-01
GB4617/21A GB178616A (en) 1920-10-01 1921-02-09 Improvements in and relating to electric lamp discharge devices, or the like
NL20734A NL10239C (en) 1920-10-01 1921-11-05

Publications (1)

Publication Number Publication Date
FR541838A true FR541838A (en) 1922-08-02

Family

ID=9780542

Family Applications (1)

Application Number Title Priority Date Filing Date
FR541838D Expired FR541838A (en) 1920-10-01 1921-09-30 Improvements to electronic discharge devices

Country Status (3)

Country Link
FR (1) FR541838A (en)
GB (1) GB178616A (en)
NL (1) NL10239C (en)

Also Published As

Publication number Publication date
GB178616A (en) 1922-04-27
NL10239C (en) 1924-01-15

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