BE420071A - - Google Patents

Info

Publication number
BE420071A
BE420071A BE420071DA BE420071A BE 420071 A BE420071 A BE 420071A BE 420071D A BE420071D A BE 420071DA BE 420071 A BE420071 A BE 420071A
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 BE420071A publication Critical patent/BE420071A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details 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
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details 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
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
BE420071D 1936-02-19 BE420071A (ja�@�@)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL476090X 1936-02-19

Publications (1)

Publication Number Publication Date
BE420071A true BE420071A (ja�@�@)

Family

ID=19786520

Family Applications (1)

Application Number Title Priority Date Filing Date
BE420071D BE420071A (ja�@�@) 1936-02-19

Country Status (4)

Country Link
AT (1) AT158535B (ja�@�@)
BE (1) BE420071A (ja�@�@)
FR (1) FR818011A (ja�@�@)
GB (1) GB476090A (ja�@�@)

Also Published As

Publication number Publication date
FR818011A (fr) 1937-09-16
AT158535B (de) 1940-04-25
GB476090A (en) 1937-12-01

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