FR575218A - Perfectionnements aux tubes thermoioniques - Google Patents

Perfectionnements aux tubes thermoioniques

Info

Publication number
FR575218A
FR575218A FR575218DA FR575218A FR 575218 A FR575218 A FR 575218A FR 575218D A FR575218D A FR 575218DA FR 575218 A FR575218 A FR 575218A
Authority
FR
France
Prior art keywords
thermionic tubes
thermionic
tubes
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 FR575218A publication Critical patent/FR575218A/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
FR575218D 1923-01-04 1924-01-03 Perfectionnements aux tubes thermoioniques Expired FR575218A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB575218X 1958-01-29

Publications (1)

Publication Number Publication Date
FR575218A true FR575218A (fr) 1924-07-25

Family

ID=10479392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR575218D Expired FR575218A (fr) 1923-01-04 1924-01-03 Perfectionnements aux tubes thermoioniques

Country Status (2)

Country Link
BE (1) BE575218A (fr)
FR (1) FR575218A (fr)

Also Published As

Publication number Publication date
BE575218A (fr) 1959-05-15

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