BE433271A - - Google Patents

Info

Publication number
BE433271A
BE433271A BE433271DA BE433271A BE 433271 A BE433271 A BE 433271A BE 433271D A BE433271D A BE 433271DA BE 433271 A BE433271 A BE 433271A
Authority
BE
Belgium
Prior art keywords
light
blocks
aforesaid
permeable
letters
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE433271A publication Critical patent/BE433271A/fr

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
BE433271D BE433271A (esLanguage)

Publications (1)

Publication Number Publication Date
BE433271A true BE433271A (esLanguage)

Family

ID=92677

Family Applications (1)

Application Number Title Priority Date Filing Date
BE433271D BE433271A (esLanguage)

Country Status (1)

Country Link
BE (1) BE433271A (esLanguage)

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