FR639432A - Perfectionnement aux tubes thermoioniques - Google Patents

Perfectionnement aux tubes thermoioniques

Info

Publication number
FR639432A
FR639432A FR639432DA FR639432A FR 639432 A FR639432 A FR 639432A FR 639432D A FR639432D A FR 639432DA FR 639432 A FR639432 A FR 639432A
Authority
FR
France
Prior art keywords
further training
thermionic tubes
thermionic
tubes
training
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.)
FR DE RECH S ET APPLIC SCIENT
Original Assignee
FR DE RECH S ET APPLIC SCIENT
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 FR DE RECH S ET APPLIC SCIENT filed Critical FR DE RECH S ET APPLIC SCIENT
Application granted granted Critical
Publication of FR639432A publication Critical patent/FR639432A/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
FR639432D 1927-01-22 1927-01-22 Perfectionnement aux tubes thermoioniques Expired FR639432A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR639432T 1927-01-22

Publications (1)

Publication Number Publication Date
FR639432A true FR639432A (fr) 1928-06-21

Family

ID=8996750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR639432D Expired FR639432A (fr) 1927-01-22 1927-01-22 Perfectionnement aux tubes thermoioniques

Country Status (1)

Country Link
FR (1) FR639432A (fr)

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