FR17484E - Projection device - Google Patents
Projection deviceInfo
- Publication number
- FR17484E FR17484E FR17484DA FR17484E FR 17484 E FR17484 E FR 17484E FR 17484D A FR17484D A FR 17484DA FR 17484 E FR17484 E FR 17484E
- 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR452545T | 1912-10-14 | ||
FR17484T | 1913-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR17484E true FR17484E (en) | 1913-09-20 |
Family
ID=1358964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR17484D Expired FR17484E (en) | 1912-10-14 | 1913-04-07 | Projection device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR17484E (en) |
-
1913
- 1913-04-07 FR FR17484D patent/FR17484E/en not_active Expired
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