FR691791A - Perfectionnements aux lampes thermoioniques - Google Patents

Perfectionnements aux lampes thermoioniques

Info

Publication number
FR691791A
FR691791A FR691791DA FR691791A FR 691791 A FR691791 A FR 691791A FR 691791D A FR691791D A FR 691791DA FR 691791 A FR691791 A FR 691791A
Authority
FR
France
Prior art keywords
thermionic
lamps
thermionic lamps
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.)
Arcturus Radio Tube Co
Original Assignee
Arcturus Radio Tube Co
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 Arcturus Radio Tube Co filed Critical Arcturus Radio Tube Co
Application granted granted Critical
Publication of FR691791A publication Critical patent/FR691791A/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
    • H01J19/38—Control electrodes, e.g. grid
FR691791D 1929-03-18 1930-03-12 Perfectionnements aux lampes thermoioniques Expired FR691791A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691791XA 1929-03-18 1929-03-18

Publications (1)

Publication Number Publication Date
FR691791A true FR691791A (fr) 1930-10-27

Family

ID=22087237

Family Applications (1)

Application Number Title Priority Date Filing Date
FR691791D Expired FR691791A (fr) 1929-03-18 1930-03-12 Perfectionnements aux lampes thermoioniques

Country Status (1)

Country Link
FR (1) FR691791A (fr)

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