BE432879A - - Google Patents

Info

Publication number
BE432879A
BE432879A BE432879DA BE432879A BE 432879 A BE432879 A BE 432879A BE 432879D A BE432879D A BE 432879DA BE 432879 A BE432879 A BE 432879A
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 BE432879A publication Critical patent/BE432879A/xx

Links

Classifications

    • 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)
BE432879D 1938-02-22 BE432879A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL208636X 1938-02-22

Publications (1)

Publication Number Publication Date
BE432879A true BE432879A (zh)

Family

ID=19778700

Family Applications (1)

Application Number Title Priority Date Filing Date
BE432879D BE432879A (zh) 1938-02-22

Country Status (4)

Country Link
BE (1) BE432879A (zh)
CH (1) CH208636A (zh)
FR (1) FR850654A (zh)
NL (1) NL49428C (zh)

Also Published As

Publication number Publication date
FR850654A (fr) 1939-12-22
CH208636A (de) 1940-02-15
NL49428C (zh)

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