FR887168A - Appareil de projection - Google Patents
Appareil de projectionInfo
- Publication number
- FR887168A FR887168A FR887168DA FR887168A FR 887168 A FR887168 A FR 887168A FR 887168D A FR887168D A FR 887168DA FR 887168 A FR887168 A FR 887168A
- 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
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
- G03B21/10—Projectors with built-in or built-on screen
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH887168X | 1940-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR887168A true FR887168A (fr) | 1943-11-05 |
Family
ID=4545361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR887168D Expired FR887168A (fr) | 1940-12-27 | 1941-12-04 | Appareil de projection |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR887168A (fr) |
-
1941
- 1941-12-04 FR FR887168D patent/FR887168A/fr not_active Expired
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