FR840031A - Perfectionnements aux lampes pour ondes ultra-courtes - Google Patents

Perfectionnements aux lampes pour ondes ultra-courtes

Info

Publication number
FR840031A
FR840031A FR840031DA FR840031A FR 840031 A FR840031 A FR 840031A FR 840031D A FR840031D A FR 840031DA FR 840031 A FR840031 A FR 840031A
Authority
FR
France
Prior art keywords
ultra
shortwave
lamp
shortwave lamp
lamp improvements
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.)
APPLIC PRATIQUES RADIO ELECTR
Original Assignee
APPLIC PRATIQUES RADIO ELECTR
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 APPLIC PRATIQUES RADIO ELECTR filed Critical APPLIC PRATIQUES RADIO ELECTR
Application granted granted Critical
Publication of FR840031A publication Critical patent/FR840031A/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
FR840031D 1937-12-20 1937-12-20 Perfectionnements aux lampes pour ondes ultra-courtes Expired FR840031A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR840031T 1937-12-20

Publications (1)

Publication Number Publication Date
FR840031A true FR840031A (fr) 1939-04-18

Family

ID=9299981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR840031D Expired FR840031A (fr) 1937-12-20 1937-12-20 Perfectionnements aux lampes pour ondes ultra-courtes

Country Status (1)

Country Link
FR (1) FR840031A (fr)

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