FR742873A - - Google Patents

Info

Publication number
FR742873A
FR742873A FR742873DA FR742873A FR 742873 A FR742873 A FR 742873A FR 742873D A FR742873D A FR 742873DA FR 742873 A FR742873 A FR 742873A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR742873A publication Critical patent/FR742873A/fr
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
FR742873D Expired FR742873A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR742873A true FR742873A (cg-RX-API-DMAC7.html) 1933-03-18

Family

ID=1547214

Family Applications (1)

Application Number Title Priority Date Filing Date
FR742873D Expired FR742873A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR742873A (cg-RX-API-DMAC7.html)

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