FR622276A - Appareil de projection - Google Patents

Appareil de projection

Info

Publication number
FR622276A
FR622276A FR622276DA FR622276A FR 622276 A FR622276 A FR 622276A FR 622276D A FR622276D A FR 622276DA FR 622276 A FR622276 A FR 622276A
Authority
FR
France
Prior art keywords
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
English (en)
Inventor
Raoul-Leopold Moreau
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 FR622276A publication Critical patent/FR622276A/fr
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)
FR622276D 1926-09-29 1926-09-29 Appareil de projection Expired FR622276A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR622276T 1926-09-29

Publications (1)

Publication Number Publication Date
FR622276A true FR622276A (fr) 1927-05-27

Family

ID=8985716

Family Applications (1)

Application Number Title Priority Date Filing Date
FR622276D Expired FR622276A (fr) 1926-09-29 1926-09-29 Appareil de projection

Country Status (1)

Country Link
FR (1) FR622276A (fr)

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