BE447583A - - Google Patents

Info

Publication number
BE447583A
BE447583A BE447583DA BE447583A BE 447583 A BE447583 A BE 447583A BE 447583D A BE447583D A BE 447583DA BE 447583 A BE447583 A BE 447583A
Authority
BE
Belgium
Application number
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.)
Publication of BE447583A publication Critical patent/BE447583A/xx

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/14Solid thermionic cathodes characterised by the material
    • H01J1/142Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
BE447583D 1941-11-05 BE447583A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE886985X 1941-11-05

Publications (1)

Publication Number Publication Date
BE447583A true BE447583A (en:Method)

Family

ID=6833575

Family Applications (1)

Application Number Title Priority Date Filing Date
BE447583D BE447583A (en:Method) 1941-11-05

Country Status (2)

Country Link
BE (1) BE447583A (en:Method)
FR (1) FR886985A (en:Method)

Also Published As

Publication number Publication date
FR886985A (fr) 1943-10-29

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