NL15308C - - Google Patents

Info

Publication number
NL15308C
NL15308C NL15308DA NL15308C NL 15308 C NL15308 C NL 15308C NL 15308D A NL15308D A NL 15308DA NL 15308 C NL15308 C NL 15308C
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 date
Application granted granted Critical
Publication of NL15308C publication Critical patent/NL15308C/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)
  • Solid Thermionic Cathode (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
NL15308D 1923-06-12 NL15308C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15309/23A GB221851A (en) 1923-06-12 1923-06-12 Improvements in or relating to vacuum electric tubes

Publications (1)

Publication Number Publication Date
NL15308C true NL15308C (enrdf_load_html_response) 1900-01-01

Family

ID=10056785

Family Applications (1)

Application Number Title Priority Date Filing Date
NL15308D NL15308C (enrdf_load_html_response) 1923-06-12

Country Status (5)

Country Link
US (1) US1850809A (enrdf_load_html_response)
DE (1) DE483948C (enrdf_load_html_response)
FR (1) FR582662A (enrdf_load_html_response)
GB (1) GB221851A (enrdf_load_html_response)
NL (1) NL15308C (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741396C (de) * 1937-07-17 1943-11-10 Sueddeutsche Telefon App Kabel Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968912C (de) * 1931-09-15 1958-04-10 Siegmund Loewe Dr Verfahren zur Herstellung von Hochemissionskathoden fuer Entladungsgefaesse
NL48805C (enrdf_load_html_response) * 1936-09-01
US2693431A (en) * 1948-01-27 1954-11-02 Eitcl Mccullough Inc Method of making electron emitters
NL88370C (enrdf_load_html_response) * 1952-03-26
US3265924A (en) * 1962-06-29 1966-08-09 York Res Corp Thermionic tube having novel heater and cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741396C (de) * 1937-07-17 1943-11-10 Sueddeutsche Telefon App Kabel Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden

Also Published As

Publication number Publication date
FR582662A (fr) 1924-12-24
GB221851A (en) 1924-09-12
US1850809A (en) 1932-03-22
DE483948C (de) 1929-10-09

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