FR523613A - Perfectionnements aux soupapes utilisées pour la transmission sans fil - Google Patents

Perfectionnements aux soupapes utilisées pour la transmission sans fil

Info

Publication number
FR523613A
FR523613A FR523613A FR523613DA FR523613A FR 523613 A FR523613 A FR 523613A FR 523613 A FR523613 A FR 523613A FR 523613D A FR523613D A FR 523613DA FR 523613 A FR523613 A FR 523613A
Authority
FR
France
Prior art keywords
wireless transmission
valves used
valves
wireless
transmission
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
FR523613A
Other languages
English (en)
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR523613A publication Critical patent/FR523613A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/135—Circuit arrangements therefor, e.g. for temperature control
FR523613A 1919-09-03 1920-09-03 Perfectionnements aux soupapes utilisées pour la transmission sans fil Expired FR523613A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21594/19A GB154982A (en) 1919-09-03 1919-09-03 Improvement in valves used for wireless transmission

Publications (1)

Publication Number Publication Date
FR523613A true FR523613A (fr) 1921-08-20

Family

ID=10165535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR523613A Expired FR523613A (fr) 1919-09-03 1920-09-03 Perfectionnements aux soupapes utilisées pour la transmission sans fil

Country Status (4)

Country Link
US (1) US1654513A (cs)
FR (1) FR523613A (cs)
GB (1) GB154982A (cs)
NL (1) NL7572C (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424526A (en) * 1943-01-11 1947-07-22 Gen Electric Electric discharge device
NL67449C (cs) * 1947-11-28 1900-01-01

Also Published As

Publication number Publication date
US1654513A (en) 1927-12-27
GB154982A (en) 1920-12-03
NL7572C (cs)

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