FR843667A - Advanced projection device - Google Patents
Advanced projection deviceInfo
- Publication number
- FR843667A FR843667A FR843667DA FR843667A FR 843667 A FR843667 A FR 843667A FR 843667D A FR843667D A FR 843667DA FR 843667 A FR843667 A FR 843667A
- Authority
- FR
- France
- Prior art keywords
- projection device
- advanced projection
- advanced
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR843667T | 1938-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR843667A true FR843667A (en) | 1939-07-07 |
Family
ID=9312034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR843667D Expired FR843667A (en) | 1938-03-15 | 1938-03-15 | Advanced projection device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR843667A (en) |
-
1938
- 1938-03-15 FR FR843667D patent/FR843667A/en not_active Expired
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