FR665189A - Appareil de projection - Google Patents

Appareil de projection

Info

Publication number
FR665189A
FR665189A FR665189DA FR665189A FR 665189 A FR665189 A FR 665189A FR 665189D A FR665189D A FR 665189DA FR 665189 A FR665189 A FR 665189A
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
John Clifford Savage
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 FR665189A publication Critical patent/FR665189A/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)
FR665189D 1928-07-30 1928-07-30 Appareil de projection Expired FR665189A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR665189T 1928-07-30

Publications (1)

Publication Number Publication Date
FR665189A true FR665189A (fr) 1929-09-16

Family

ID=9013151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR665189D Expired FR665189A (fr) 1928-07-30 1928-07-30 Appareil de projection

Country Status (1)

Country Link
FR (1) FR665189A (fr)

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