FR2426278B1 - - Google Patents
Info
- Publication number
- FR2426278B1 FR2426278B1 FR7814519A FR7814519A FR2426278B1 FR 2426278 B1 FR2426278 B1 FR 2426278B1 FR 7814519 A FR7814519 A FR 7814519A FR 7814519 A FR7814519 A FR 7814519A FR 2426278 B1 FR2426278 B1 FR 2426278B1
- 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
- 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)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7814519A FR2426278A1 (fr) | 1978-05-17 | 1978-05-17 | Dispositif sous forme de support avec ecran pour projections audio-visuelles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7814519A FR2426278A1 (fr) | 1978-05-17 | 1978-05-17 | Dispositif sous forme de support avec ecran pour projections audio-visuelles |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2426278A1 FR2426278A1 (fr) | 1979-12-14 |
FR2426278B1 true FR2426278B1 (fr) | 1980-11-28 |
Family
ID=9208305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7814519A Granted FR2426278A1 (fr) | 1978-05-17 | 1978-05-17 | Dispositif sous forme de support avec ecran pour projections audio-visuelles |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2426278A1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE515081C (de) * | 1930-12-24 | Bettenhausen Reklame Ges G M B | Lichtreklamevorrichtung zur Darstellung von Bewegungsvorgaengen | |
US2317310A (en) * | 1941-04-30 | 1943-04-20 | Gertrude Israel | Film and slide projecting apparatus |
FR2279127A1 (fr) * | 1974-07-18 | 1976-02-13 | Grivelet Etienne | Appareil pour la projection simultanee de plusieurs images sur plusieurs surfaces differentes |
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1978
- 1978-05-17 FR FR7814519A patent/FR2426278A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2426278A1 (fr) | 1979-12-14 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |