FR539066A - Improvements in thermionic lamps or valves - Google Patents

Improvements in thermionic lamps or valves

Info

Publication number
FR539066A
FR539066A FR539066DA FR539066A FR 539066 A FR539066 A FR 539066A FR 539066D A FR539066D A FR 539066DA FR 539066 A FR539066 A FR 539066A
Authority
FR
France
Prior art keywords
thermionic
lamps
valves
thermionic lamps
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
Arthur Kenneth Macrorie
Harold Morris-Airey
George Shearing
Stanley Robert Mullard
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 filed Critical
Application granted granted Critical
Publication of FR539066A publication Critical patent/FR539066A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
FR539066D 1921-08-05 1921-08-05 Improvements in thermionic lamps or valves Expired FR539066A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR539066T 1921-08-05

Publications (1)

Publication Number Publication Date
FR539066A true FR539066A (en) 1922-06-21

Family

ID=8928614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR539066D Expired FR539066A (en) 1921-08-05 1921-08-05 Improvements in thermionic lamps or valves

Country Status (1)

Country Link
FR (1) FR539066A (en)

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