FR1072909A - Electron tube - Google Patents

Electron tube

Info

Publication number
FR1072909A
FR1072909A FR1072909DA FR1072909A FR 1072909 A FR1072909 A FR 1072909A FR 1072909D A FR1072909D A FR 1072909DA FR 1072909 A FR1072909 A FR 1072909A
Authority
FR
France
Prior art keywords
electron tube
electron
tube
Prior art date
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)
Inventor
John Torkel Wallmark
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
Application filed filed Critical
Application granted granted Critical
Publication of FR1072909A publication Critical patent/FR1072909A/en
Expired legal-status Critical Current

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
FR1072909D 1952-03-14 1953-03-12 Electron tube Expired FR1072909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1072909X 1952-03-14

Publications (1)

Publication Number Publication Date
FR1072909A true FR1072909A (en) 1954-09-16

Family

ID=20419596

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1072909D Expired FR1072909A (en) 1952-03-14 1953-03-12 Electron tube

Country Status (1)

Country Link
FR (1) FR1072909A (en)

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