BE380781A - - Google Patents

Info

Publication number
BE380781A
BE380781A BE380781DA BE380781A BE 380781 A BE380781 A BE 380781A BE 380781D A BE380781D A BE 380781DA BE 380781 A BE380781 A BE 380781A
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 BE380781A publication Critical patent/BE380781A/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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Solid Thermionic Cathode (AREA)
BE380781D 1930-06-25 BE380781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE380835X 1930-06-25

Publications (1)

Publication Number Publication Date
BE380781A true BE380781A (en)

Family

ID=6349618

Family Applications (1)

Application Number Title Priority Date Filing Date
BE380781D BE380781A (en) 1930-06-25

Country Status (4)

Country Link
US (1) US1893935A (en)
BE (1) BE380781A (en)
FR (1) FR719069A (en)
GB (1) GB380835A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861014A (en) * 1956-08-14 1958-11-18 Gen Lab Associates Inc Process of making a semi-conductive ceramic body

Also Published As

Publication number Publication date
FR719069A (en) 1932-02-01
US1893935A (en) 1933-01-10
GB380835A (en) 1932-09-26

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