FR39403E - Perfectionnements aux tubes électroniques - Google Patents

Perfectionnements aux tubes électroniques

Info

Publication number
FR39403E
FR39403E FR39403DA FR39403E FR 39403 E FR39403 E FR 39403E FR 39403D A FR39403D A FR 39403DA FR 39403 E FR39403 E FR 39403E
Authority
FR
France
Prior art keywords
electronic tubes
tubes
electronic
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
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR39403E publication Critical patent/FR39403E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
FR39403D 1930-11-12 1930-11-12 Perfectionnements aux tubes électroniques Expired FR39403E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR39403T 1930-11-12

Publications (1)

Publication Number Publication Date
FR39403E true FR39403E (fr) 1931-10-19

Family

ID=8675788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR39403D Expired FR39403E (fr) 1930-11-12 1930-11-12 Perfectionnements aux tubes électroniques

Country Status (1)

Country Link
FR (1) FR39403E (fr)

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