FR416923A - Electrodes for rare earth tubes geissler - Google Patents

Electrodes for rare earth tubes geissler

Info

Publication number
FR416923A
FR416923A FR416923DA FR416923A FR 416923 A FR416923 A FR 416923A FR 416923D A FR416923D A FR 416923DA FR 416923 A FR416923 A FR 416923A
Authority
FR
Grant status
Grant
Patent type
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LA BANQUE DU RADIUM
BANQUE DU RADIUM
Original Assignee
Banque Du Radium
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.)
Filing date
Publication date
Grant date

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas- or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/06Main electrodes
    • H01J61/067Main electrodes for low-pressure discharge lamps
    • H01J61/0675Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
FR416923A 1910-06-09 1910-06-09 Electrodes for rare earth tubes geissler Expired FR416923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR416923T 1910-06-09

Publications (1)

Publication Number Publication Date
FR416923A true FR416923A (en) 1910-11-02

Family

ID=1460377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR416923A Expired FR416923A (en) 1910-06-09 1910-06-09 Electrodes for rare earth tubes geissler

Country Status (1)

Country Link
FR (1) FR416923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005639A1 (en) * 1995-07-31 1997-02-13 Casio Computer Co., Ltd. Electron-emitting electrode, method of manufacturing the same, and light-emitting device having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005639A1 (en) * 1995-07-31 1997-02-13 Casio Computer Co., Ltd. Electron-emitting electrode, method of manufacturing the same, and light-emitting device having the same

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