NL44137C - - Google Patents

Info

Publication number
NL44137C
NL44137C NL44137DA NL44137C NL 44137 C NL44137 C NL 44137C NL 44137D A NL44137D A NL 44137DA NL 44137 C NL44137 C NL 44137C
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 NL44137C publication Critical patent/NL44137C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/16—Photoelectric discharge tubes not involving the ionisation of a gas having photo- emissive cathode, e.g. alkaline photoelectric cell
NL44137D 1934-03-14 NL44137C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE426389X 1934-03-14

Publications (1)

Publication Number Publication Date
NL44137C true NL44137C (enrdf_load_stackoverflow)

Family

ID=6477182

Family Applications (1)

Application Number Title Priority Date Filing Date
NL44137D NL44137C (enrdf_load_stackoverflow) 1934-03-14

Country Status (4)

Country Link
US (1) US2031331A (enrdf_load_stackoverflow)
FR (1) FR786412A (enrdf_load_stackoverflow)
GB (1) GB426389A (enrdf_load_stackoverflow)
NL (1) NL44137C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106941070A (zh) * 2016-08-03 2017-07-11 成都青岗科技有限公司 一种球形紫外光电管

Also Published As

Publication number Publication date
US2031331A (en) 1936-02-18
GB426389A (en) 1935-04-02
FR786412A (fr) 1935-09-03

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