FR648357A - Perfectionnements aux lampes thermoioniques - Google Patents

Perfectionnements aux lampes thermoioniques

Info

Publication number
FR648357A
FR648357A FR648357DA FR648357A FR 648357 A FR648357 A FR 648357A FR 648357D A FR648357D A FR 648357DA FR 648357 A FR648357 A FR 648357A
Authority
FR
France
Prior art keywords
thermionic
lamps
thermionic lamps
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
English (en)
Inventor
Francois Peri
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 filed Critical
Application granted granted Critical
Publication of FR648357A publication Critical patent/FR648357A/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
FR648357D 1927-06-18 1927-06-18 Perfectionnements aux lampes thermoioniques Expired FR648357A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR648357T 1927-06-18

Publications (1)

Publication Number Publication Date
FR648357A true FR648357A (fr) 1928-12-08

Family

ID=9002637

Family Applications (1)

Application Number Title Priority Date Filing Date
FR648357D Expired FR648357A (fr) 1927-06-18 1927-06-18 Perfectionnements aux lampes thermoioniques

Country Status (1)

Country Link
FR (1) FR648357A (fr)

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