FR879214A - Cathode improvements for discharge tubes - Google Patents

Cathode improvements for discharge tubes

Info

Publication number
FR879214A
FR879214A FR879214DA FR879214A FR 879214 A FR879214 A FR 879214A FR 879214D A FR879214D A FR 879214DA FR 879214 A FR879214 A FR 879214A
Authority
FR
France
Prior art keywords
cathode
discharge tubes
tubes
discharge
cathode improvements
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 FR879214A publication Critical patent/FR879214A/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
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
FR879214D 1941-02-11 1942-02-10 Cathode improvements for discharge tubes Expired FR879214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US879214XA 1941-02-11 1941-02-11

Publications (1)

Publication Number Publication Date
FR879214A true FR879214A (en) 1943-02-17

Family

ID=22208063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR879214D Expired FR879214A (en) 1941-02-11 1942-02-10 Cathode improvements for discharge tubes

Country Status (1)

Country Link
FR (1) FR879214A (en)

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