BE372894A - - Google Patents

Info

Publication number
BE372894A
BE372894A BE372894DA BE372894A BE 372894 A BE372894 A BE 372894A BE 372894D A BE372894D A BE 372894DA BE 372894 A BE372894 A BE 372894A
Authority
BE
Belgium
Prior art keywords
cathode
thin
tube
layer
substances
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE372894A publication Critical patent/BE372894A/fr

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
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28Dispenser-type cathodes, e.g. L-cathode

Landscapes

  • Cold Cathode And The Manufacture (AREA)
BE372894D BE372894A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Publications (1)

Publication Number Publication Date
BE372894A true BE372894A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Family

ID=43925

Family Applications (1)

Application Number Title Priority Date Filing Date
BE372894D BE372894A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Country Status (1)

Country Link
BE (1) BE372894A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

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