FR721436A - Improvements to discharge tubes - Google Patents

Improvements to discharge tubes

Info

Publication number
FR721436A
FR721436A FR721436DA FR721436A FR 721436 A FR721436 A FR 721436A FR 721436D A FR721436D A FR 721436DA FR 721436 A FR721436 A FR 721436A
Authority
FR
France
Prior art keywords
discharge tubes
tubes
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 Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR721436A publication Critical patent/FR721436A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0013—Sealed electrodes
FR721436D 1930-04-14 1931-04-14 Improvements to discharge tubes Expired FR721436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US721436XA 1930-04-14 1930-04-14

Publications (1)

Publication Number Publication Date
FR721436A true FR721436A (en) 1932-03-03

Family

ID=22105857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721436D Expired FR721436A (en) 1930-04-14 1931-04-14 Improvements to discharge tubes

Country Status (1)

Country Link
FR (1) FR721436A (en)

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