FR567804A - Improvements to vacuum tubes - Google Patents

Improvements to vacuum tubes

Info

Publication number
FR567804A
FR567804A FR567804DA FR567804A FR 567804 A FR567804 A FR 567804A FR 567804D A FR567804D A FR 567804DA FR 567804 A FR567804 A FR 567804A
Authority
FR
France
Prior art keywords
vacuum tubes
tubes
vacuum
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)
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.)
Ind E G Grammont & Alexandre G
Original Assignee
Ind E G Grammont & Alexandre G
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 Ind E G Grammont & Alexandre G filed Critical Ind E G Grammont & Alexandre G
Application granted granted Critical
Publication of FR567804A publication Critical patent/FR567804A/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
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/04—Vessels or containers characterised by the material thereof
FR567804D 1923-06-25 1923-06-25 Improvements to vacuum tubes Expired FR567804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR567804T 1923-06-25

Publications (1)

Publication Number Publication Date
FR567804A true FR567804A (en) 1924-03-10

Family

ID=8948035

Family Applications (1)

Application Number Title Priority Date Filing Date
FR567804D Expired FR567804A (en) 1923-06-25 1923-06-25 Improvements to vacuum tubes

Country Status (1)

Country Link
FR (1) FR567804A (en)

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