FR676537A - Electric luminescent tube - Google Patents

Electric luminescent tube

Info

Publication number
FR676537A
FR676537A FR676537DA FR676537A FR 676537 A FR676537 A FR 676537A FR 676537D A FR676537D A FR 676537DA FR 676537 A FR676537 A FR 676537A
Authority
FR
France
Prior art keywords
luminescent tube
electric luminescent
electric
tube
luminescent
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.)
Osa Participations Industrielles SA
Original Assignee
Osa Participations Industrielles 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 Osa Participations Industrielles SA filed Critical Osa Participations Industrielles SA
Application granted granted Critical
Publication of FR676537A publication Critical patent/FR676537A/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
FR676537D 1928-07-13 1929-06-11 Electric luminescent tube Expired FR676537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE315386X 1928-07-13

Publications (1)

Publication Number Publication Date
FR676537A true FR676537A (en) 1930-02-24

Family

ID=6150183

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676537D Expired FR676537A (en) 1928-07-13 1929-06-11 Electric luminescent tube

Country Status (2)

Country Link
FR (1) FR676537A (en)
GB (1) GB315386A (en)

Also Published As

Publication number Publication date
GB315386A (en) 1930-05-08

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