FR762293A - Appareil de projections lumineuses - Google Patents

Appareil de projections lumineuses

Info

Publication number
FR762293A
FR762293A FR762293DA FR762293A FR 762293 A FR762293 A FR 762293A FR 762293D A FR762293D A FR 762293DA FR 762293 A FR762293 A FR 762293A
Authority
FR
France
Prior art keywords
projection device
light projection
light
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
Georges Joseph Richard Heysse
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 FR762293A publication Critical patent/FR762293A/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
FR762293D 1932-10-29 1933-10-12 Appareil de projections lumineuses Expired FR762293A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE762293X 1932-10-29

Publications (1)

Publication Number Publication Date
FR762293A true FR762293A (fr) 1934-04-09

Family

ID=3879947

Family Applications (1)

Application Number Title Priority Date Filing Date
FR762293D Expired FR762293A (fr) 1932-10-29 1933-10-12 Appareil de projections lumineuses

Country Status (1)

Country Link
FR (1) FR762293A (fr)

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