FR749053A - Perfectionnements aux lampes électroniques - Google Patents

Perfectionnements aux lampes électroniques

Info

Publication number
FR749053A
FR749053A FR749053DA FR749053A FR 749053 A FR749053 A FR 749053A FR 749053D A FR749053D A FR 749053DA FR 749053 A FR749053 A FR 749053A
Authority
FR
France
Prior art keywords
electronic lamps
lamps
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR749053A publication Critical patent/FR749053A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/065—Devices for short wave tubes
FR749053D 1933-01-14 1933-01-14 Perfectionnements aux lampes électroniques Expired FR749053A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR749053T 1933-01-14

Publications (1)

Publication Number Publication Date
FR749053A true FR749053A (fr) 1933-07-18

Family

ID=6649164

Family Applications (1)

Application Number Title Priority Date Filing Date
FR749053D Expired FR749053A (fr) 1933-01-14 1933-01-14 Perfectionnements aux lampes électroniques

Country Status (1)

Country Link
FR (1) FR749053A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437941A (en) * 1942-04-11 1948-03-16 Hartford Nat Bank & Trust Co Electron discharge tube with partially coated grid
US2686885A (en) * 1949-11-26 1954-08-17 Sylvania Electric Prod Insulated coated grid for electron discharge devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437941A (en) * 1942-04-11 1948-03-16 Hartford Nat Bank & Trust Co Electron discharge tube with partially coated grid
US2686885A (en) * 1949-11-26 1954-08-17 Sylvania Electric Prod Insulated coated grid for electron discharge devices

Similar Documents

Publication Publication Date Title
FR781427A (fr) Perfectionnements aux tubes électroniques
FR807410A (fr) Perfectionnements aux lampes de petites dimensions
FR758644A (fr) Perfectionnements aux lampes électriques
FR773088A (fr) Tubes électroniques
FR779256A (fr) Perfectionnements aux lampes électriques
FR784894A (fr) Perfectionnements aux lampes électriques
FR838835A (fr) Perfectionnements aux lampes électroniques
FR755136A (fr) Perfectionnements aux lampes thermo-ioniques
FR785266A (fr) Perfectionnements aux lampes électroniques
FR753603A (fr) Perfectionnements aux tombereaux
FR825097A (fr) Perfectionnements aux lampes électroniques
FR761034A (fr) Perfectionnements aux robinets
FR781312A (fr) Perfectionnements aux fontaines lumineuses
FR758392A (fr) Perfectionnements apportés aux montres-bracelets
FR771072A (fr) Perfectionnements aux tombereaux
FR770030A (fr) Perfectionnements aux lampes électriques
FR778959A (fr) Perfectionnements aux lampes électriques
FR780954A (fr) Perfectionnements aux lampes électriques
FR773477A (fr) Perfectionnements aux économiseurs
FR818705A (fr) Perfectionnements aux lampes électroniques
FR764807A (fr) Perfectionnements aux crics
FR782344A (fr) Tubes électroniques
FR758941A (fr) Perfectionnements aux pompes
FR799599A (fr) Perfectionnements aux culots de lampes électroniques
FR758109A (fr) Perfectionnements aux corsets-gaines