BE427303A - - Google Patents

Info

Publication number
BE427303A
BE427303A BE427303DA BE427303A BE 427303 A BE427303 A BE 427303A BE 427303D A BE427303D A BE 427303DA BE 427303 A BE427303 A BE 427303A
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 BE427303A publication Critical patent/BE427303A/xx

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/12Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/32Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Cold Cathode And The Manufacture (AREA)
BE427303D 1937-04-02 BE427303A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL207265X 1937-04-02

Publications (1)

Publication Number Publication Date
BE427303A true BE427303A (en:Method)

Family

ID=19778619

Family Applications (1)

Application Number Title Priority Date Filing Date
BE427303D BE427303A (en:Method) 1937-04-02

Country Status (6)

Country Link
US (1) US2190695A (en:Method)
BE (1) BE427303A (en:Method)
CH (1) CH207265A (en:Method)
FR (1) FR836016A (en:Method)
GB (1) GB492025A (en:Method)
NL (1) NL50264C (en:Method)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637002A (en) * 1953-04-28 Television pickup tube
BE446289A (en:Method) * 1941-07-03
US2530167A (en) * 1944-12-14 1950-11-14 Hartford Nat Bank & Trust Co Discharge tube
GB1200899A (en) * 1967-04-21 1970-08-05 Mullard Ltd Improvements in or relating to photocathodes

Also Published As

Publication number Publication date
GB492025A (en) 1938-09-13
US2190695A (en) 1940-02-20
FR836016A (fr) 1939-01-09
CH207265A (de) 1939-10-15
NL50264C (en:Method)

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