FR549602A - Improvements in the construction of thermionic valves - Google Patents

Improvements in the construction of thermionic valves

Info

Publication number
FR549602A
FR549602A FR549602DA FR549602A FR 549602 A FR549602 A FR 549602A FR 549602D A FR549602D A FR 549602DA FR 549602 A FR549602 A FR 549602A
Authority
FR
France
Prior art keywords
construction
thermionic valves
thermionic
valves
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
French (fr)
Inventor
Stanley Robert Mullard
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve 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 Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Application granted granted Critical
Publication of FR549602A publication Critical patent/FR549602A/en
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
FR549602D 1921-07-16 1922-03-31 Improvements in the construction of thermionic valves Expired FR549602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB549602X 1921-07-16

Publications (1)

Publication Number Publication Date
FR549602A true FR549602A (en) 1923-02-15

Family

ID=10472576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR549602D Expired FR549602A (en) 1921-07-16 1922-03-31 Improvements in the construction of thermionic valves

Country Status (1)

Country Link
FR (1) FR549602A (en)

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