BE440557A - - Google Patents

Info

Publication number
BE440557A
BE440557A BE440557DA BE440557A BE 440557 A BE440557 A BE 440557A BE 440557D A BE440557D A BE 440557DA BE 440557 A BE440557 A BE 440557A
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 BE440557A publication Critical patent/BE440557A/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
    • H01J1/32—Secondary-electron-emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
BE440557D 1940-02-16 BE440557A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE869470X 1940-02-16

Publications (1)

Publication Number Publication Date
BE440557A true BE440557A (de)

Family

ID=6802940

Family Applications (1)

Application Number Title Priority Date Filing Date
BE440557D BE440557A (de) 1940-02-16

Country Status (2)

Country Link
BE (1) BE440557A (de)
FR (1) FR869470A (de)

Also Published As

Publication number Publication date
FR869470A (fr) 1942-02-03

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