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 (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE420071A true BE420071A (fr)

Family

ID=19786520

Family Applications (1)

Application Number Title Priority Date Filing Date
BE420071D BE420071A (fr) 1936-02-19

Country Status (4)

Country Link
AT (1) AT158535B (fr)
BE (1) BE420071A (fr)
FR (1) FR818011A (fr)
GB (1) GB476090A (fr)

Also Published As

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

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