NL49428C - - Google Patents

Info

Publication number
NL49428C
NL49428C NL49428DA NL49428C NL 49428 C NL49428 C NL 49428C NL 49428D A NL49428D A NL 49428DA NL 49428 C NL49428 C NL 49428C
Authority
NL
Netherlands
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 NL49428C publication Critical patent/NL49428C/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)
NL49428D 1938-02-22 NL49428C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL49428C true NL49428C (enrdf_load_stackoverflow)

Family

ID=19778700

Family Applications (1)

Application Number Title Priority Date Filing Date
NL49428D NL49428C (enrdf_load_stackoverflow) 1938-02-22

Country Status (4)

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

Also Published As

Publication number Publication date
BE432879A (enrdf_load_stackoverflow)
CH208636A (de) 1940-02-15
FR850654A (fr) 1939-12-22

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