NL33389C - - Google Patents

Info

Publication number
NL33389C
NL33389C NL33389DA NL33389C NL 33389 C NL33389 C NL 33389C NL 33389D A NL33389D A NL 33389DA NL 33389 C NL33389 C NL 33389C
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 NL33389C publication Critical patent/NL33389C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
NL33389D 1930-10-09 NL33389C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US487541A US1924375A (en) 1930-10-09 1930-10-09 Cathode structure for thermionic devices

Publications (1)

Publication Number Publication Date
NL33389C true NL33389C (enrdf_load_html_response)

Family

ID=23936153

Family Applications (1)

Application Number Title Priority Date Filing Date
NL33389D NL33389C (enrdf_load_html_response) 1930-10-09

Country Status (3)

Country Link
US (1) US1924375A (enrdf_load_html_response)
GB (1) GB386376A (enrdf_load_html_response)
NL (1) NL33389C (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418117A (en) * 1944-05-29 1947-04-01 Bell Telephone Labor Inc Electron discharge device
US2513255A (en) * 1948-03-03 1950-06-27 Electrons Inc Grid control metal envelope gas tube
NL159006C (enrdf_load_html_response) * 1950-02-15

Also Published As

Publication number Publication date
GB386376A (en) 1933-01-19
US1924375A (en) 1933-08-29

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