FR721721A - Projection device for advertising - Google Patents

Projection device for advertising

Info

Publication number
FR721721A
FR721721A FR721721DA FR721721A FR 721721 A FR721721 A FR 721721A FR 721721D A FR721721D A FR 721721DA FR 721721 A FR721721 A FR 721721A
Authority
FR
France
Prior art keywords
advertising
projection device
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
Hugo Karvaly
Friedrich Wanek
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 FR721721A publication Critical patent/FR721721A/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)
FR721721D 1930-08-18 1931-08-18 Projection device for advertising Expired FR721721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT721721X 1930-08-18

Publications (1)

Publication Number Publication Date
FR721721A true FR721721A (en) 1932-03-07

Family

ID=3679904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721721D Expired FR721721A (en) 1930-08-18 1931-08-18 Projection device for advertising

Country Status (1)

Country Link
FR (1) FR721721A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833294A (en) * 1972-11-02 1974-09-03 Eastman Kodak Co Automatic searching film reader

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833294A (en) * 1972-11-02 1974-09-03 Eastman Kodak Co Automatic searching film reader

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