BE447545A - - Google Patents

Info

Publication number
BE447545A
BE447545A BE447545DA BE447545A BE 447545 A BE447545 A BE 447545A BE 447545D A BE447545D A BE 447545DA BE 447545 A BE447545 A BE 447545A
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 BE447545A publication Critical patent/BE447545A/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
    • H01J1/15Cathodes heated directly by an electric current
    • H01J1/16Cathodes heated directly by an electric current characterised by the shape
BE447545D 1941-10-14 BE447545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL233017X 1941-10-14

Publications (1)

Publication Number Publication Date
BE447545A true BE447545A (en)

Family

ID=19780087

Family Applications (1)

Application Number Title Priority Date Filing Date
BE447545D BE447545A (en) 1941-10-14

Country Status (3)

Country Link
BE (1) BE447545A (en)
CH (1) CH233017A (en)
GB (1) GB616359A (en)

Also Published As

Publication number Publication date
CH233017A (en) 1944-06-30
GB616359A (en) 1949-01-20

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