FR548670A - Automatic light projection device - Google Patents

Automatic light projection device

Info

Publication number
FR548670A
FR548670A FR548670DA FR548670A FR 548670 A FR548670 A FR 548670A FR 548670D A FR548670D A FR 548670DA FR 548670 A FR548670 A FR 548670A
Authority
FR
France
Prior art keywords
projection device
light projection
automatic light
automatic
projection
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
Georges Baugue
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 FR548670A publication Critical patent/FR548670A/en
Expired legal-status Critical Current

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)
FR548670D 1922-03-10 1922-03-10 Automatic light projection device Expired FR548670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR548670T 1922-03-10

Publications (1)

Publication Number Publication Date
FR548670A true FR548670A (en) 1923-01-20

Family

ID=8934989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR548670D Expired FR548670A (en) 1922-03-10 1922-03-10 Automatic light projection device

Country Status (1)

Country Link
FR (1) FR548670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047475B (en) * 1954-01-16 1958-12-24 Vorwerk & Co Elektrowerke Kg Automatic projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047475B (en) * 1954-01-16 1958-12-24 Vorwerk & Co Elektrowerke Kg Automatic projector

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