FR814485A - Process for obtaining and maintaining several light columns of different colors, placed end to end - Google Patents

Process for obtaining and maintaining several light columns of different colors, placed end to end

Info

Publication number
FR814485A
FR814485A FR814485DA FR814485A FR 814485 A FR814485 A FR 814485A FR 814485D A FR814485D A FR 814485DA FR 814485 A FR814485 A FR 814485A
Authority
FR
France
Prior art keywords
obtaining
different colors
several light
light columns
maintaining several
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.)
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
Priority claimed from GB3419435A external-priority patent/GB467820A/en
Application filed by Osa Participations Industrielles SA filed Critical Osa Participations Industrielles SA
Application granted granted Critical
Publication of FR814485A publication Critical patent/FR814485A/en
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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
FR814485D 1935-12-07 1936-12-05 Process for obtaining and maintaining several light columns of different colors, placed end to end Expired FR814485A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP72255D DE651555C (en) 1935-12-07 1935-12-07 Process for the production and maintenance of several different colored light columns in a row
GB3419435A GB467820A (en) 1935-12-10 1935-12-10 Improvements in or relating to electric discharge lamps

Publications (1)

Publication Number Publication Date
FR814485A true FR814485A (en) 1937-06-24

Family

ID=25990968

Family Applications (1)

Application Number Title Priority Date Filing Date
FR814485D Expired FR814485A (en) 1935-12-07 1936-12-05 Process for obtaining and maintaining several light columns of different colors, placed end to end

Country Status (3)

Country Link
US (1) US2135691A (en)
DE (1) DE651555C (en)
FR (1) FR814485A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864966A (en) * 1955-12-02 1958-12-16 Sylvania Electric Prod Non-actinic fluorescent lamp

Also Published As

Publication number Publication date
DE651555C (en) 1937-10-16
US2135691A (en) 1938-11-08

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