FR742831A - - Google Patents
Info
- Publication number
- FR742831A FR742831A FR742831DA FR742831A FR 742831 A FR742831 A FR 742831A FR 742831D A FR742831D A FR 742831DA FR 742831 A FR742831 A FR 742831A
- Authority
- FR
- France
- 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
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742831A true FR742831A (fr) | 1933-03-17 |
Family
ID=1547176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742831D Expired FR742831A (fr) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR742831A (fr) |
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0
- FR FR742831D patent/FR742831A/fr not_active Expired