FR838774A - Advertising signs - Google Patents

Advertising signs

Info

Publication number
FR838774A
FR838774A FR838774DA FR838774A FR 838774 A FR838774 A FR 838774A FR 838774D A FR838774D A FR 838774DA FR 838774 A FR838774 A FR 838774A
Authority
FR
France
Prior art keywords
advertising signs
advertising
signs
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
Richard Huddelson Seaman
Walter Todd Wells
Lloyd Spencer
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 FR838774A publication Critical patent/FR838774A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/26—Signs formed by electric discharge tubes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR838774D 1938-06-01 1938-06-01 Advertising signs Expired FR838774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR838774T 1938-06-01

Publications (1)

Publication Number Publication Date
FR838774A true FR838774A (en) 1939-03-15

Family

ID=9299238

Family Applications (1)

Application Number Title Priority Date Filing Date
FR838774D Expired FR838774A (en) 1938-06-01 1938-06-01 Advertising signs

Country Status (1)

Country Link
FR (1) FR838774A (en)

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