NL54921C - - Google Patents

Info

Publication number
NL54921C
NL54921C NL54921DA NL54921C NL 54921 C NL54921 C NL 54921C NL 54921D A NL54921D A NL 54921DA NL 54921 C NL54921 C NL 54921C
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 NL54921C publication Critical patent/NL54921C/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)
  • Cold Cathode And The Manufacture (AREA)
NL54921D 1939-10-03 NL54921C (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL99178D DE731423C (de) 1939-10-03 1939-10-03 Verfahren zur Erhoehung der Sekundaeremissionsfaehigkeit einer Berylliumlegierung

Publications (1)

Publication Number Publication Date
NL54921C true NL54921C (en:Method)

Family

ID=7289070

Family Applications (1)

Application Number Title Priority Date Filing Date
NL54921D NL54921C (en:Method) 1939-10-03

Country Status (2)

Country Link
DE (1) DE731423C (en:Method)
NL (1) NL54921C (en:Method)

Also Published As

Publication number Publication date
DE731423C (de) 1943-02-09

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