NL17256C - - Google Patents

Info

Publication number
NL17256C
NL17256C NL17256DA NL17256C NL 17256 C NL17256 C NL 17256C NL 17256D A NL17256D A NL 17256DA NL 17256 C NL17256 C NL 17256C
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 NL17256C publication Critical patent/NL17256C/xx

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
NL17256D 1922-08-08 NL17256C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2149522A GB205613A (en) 1922-08-08 1922-08-08 Improvements in thermionic devices

Publications (1)

Publication Number Publication Date
NL17256C true NL17256C (xx)

Family

ID=10163894

Family Applications (1)

Application Number Title Priority Date Filing Date
NL17256D NL17256C (xx) 1922-08-08

Country Status (4)

Country Link
DE (1) DE545249C (xx)
FR (1) FR569581A (xx)
GB (1) GB205613A (xx)
NL (1) NL17256C (xx)

Also Published As

Publication number Publication date
DE545249C (de) 1932-03-02
FR569581A (fr) 1924-04-14
GB205613A (en) 1923-10-25

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