NL24661C - - Google Patents

Info

Publication number
NL24661C
NL24661C NL24661DA NL24661C NL 24661 C NL24661 C NL 24661C NL 24661D A NL24661D A NL 24661DA NL 24661 C NL24661 C NL 24661C
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 NL24661C publication Critical patent/NL24661C/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
NL24661D 1927-11-16 NL24661C (ja�@�@)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US233537A US1945746A (en) 1927-11-16 1927-11-16 Electron discharge device with indirectly heated cathode

Publications (1)

Publication Number Publication Date
NL24661C true NL24661C (ja�@�@)

Family

ID=22877646

Family Applications (1)

Application Number Title Priority Date Filing Date
NL24661D NL24661C (ja�@�@) 1927-11-16

Country Status (3)

Country Link
US (2) US1945746A (ja�@�@)
GB (1) GB300613A (ja�@�@)
NL (1) NL24661C (ja�@�@)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191089A (en) * 1965-06-22 Thermionic valve cathode
BE487889A (ja�@�@) * 1948-03-15
US2909699A (en) * 1957-12-05 1959-10-20 Sylvania Electric Prod Electron discharge device

Also Published As

Publication number Publication date
GB300613A (en) 1929-06-20
USRE19870E (en) 1936-02-25
US1945746A (en) 1934-02-06

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