FR712693A - Tube électrique luminescent - Google Patents

Tube électrique luminescent

Info

Publication number
FR712693A
FR712693A FR712693DA FR712693A FR 712693 A FR712693 A FR 712693A FR 712693D A FR712693D A FR 712693DA FR 712693 A FR712693 A FR 712693A
Authority
FR
France
Prior art keywords
electric tube
luminescent electric
luminescent
tube
electric
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)
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.)
Osa Participations Industrielles SA
Original Assignee
Osa Participations Industrielles SA
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 Osa Participations Industrielles SA filed Critical Osa Participations Industrielles SA
Application granted granted Critical
Publication of FR712693A publication Critical patent/FR712693A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
FR712693D 1930-07-19 1931-03-05 Tube électrique luminescent Expired FR712693A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE536371T 1930-07-19

Publications (1)

Publication Number Publication Date
FR712693A true FR712693A (fr) 1931-10-07

Family

ID=34122337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR712693D Expired FR712693A (fr) 1930-07-19 1931-03-05 Tube électrique luminescent

Country Status (3)

Country Link
DE (1) DE536371C (pm)
FR (1) FR712693A (pm)
NL (1) NL29815C (pm)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569058A (en) * 1947-09-25 1951-09-25 Ranco Inc Method of forming berylliumcopper alloy bellows

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569058A (en) * 1947-09-25 1951-09-25 Ranco Inc Method of forming berylliumcopper alloy bellows

Also Published As

Publication number Publication date
DE536371C (de) 1931-10-23
NL29815C (pm)

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