BE420573A - - Google Patents

Info

Publication number
BE420573A
BE420573A BE420573DA BE420573A BE 420573 A BE420573 A BE 420573A BE 420573D A BE420573D A BE 420573DA BE 420573 A BE420573 A BE 420573A
Authority
BE
Belgium
Prior art keywords
door
circuit
closed
lighting
bell
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE420573A publication Critical patent/BE420573A/fr

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G09F23/02Advertising on or in specific articles, e.g. ashtrays, letter-boxes the advertising matter being displayed by the operation of the article
    • G09F23/04Advertising on or in specific articles, e.g. ashtrays, letter-boxes the advertising matter being displayed by the operation of the article illuminated

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
BE420573D BE420573A (OSRAM)

Publications (1)

Publication Number Publication Date
BE420573A true BE420573A (OSRAM)

Family

ID=82612

Family Applications (1)

Application Number Title Priority Date Filing Date
BE420573D BE420573A (OSRAM)

Country Status (1)

Country Link
BE (1) BE420573A (OSRAM)

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