FR568224A - Appareil de projection cinématographique - Google Patents
Appareil de projection cinématographiqueInfo
- Publication number
- FR568224A FR568224A FR568224DA FR568224A FR 568224 A FR568224 A FR 568224A FR 568224D A FR568224D A FR 568224DA FR 568224 A FR568224 A FR 568224A
- Authority
- FR
- France
- Prior art keywords
- projection device
- cinematographic projection
- cinematographic
- 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
- G03B21/14—Details
- G03B21/18—Fire preventing or extinguishing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR568224T | 1923-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR568224A true FR568224A (fr) | 1924-03-18 |
Family
ID=8948370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR568224D Expired FR568224A (fr) | 1923-06-29 | 1923-06-29 | Appareil de projection cinématographique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR568224A (fr) |
-
1923
- 1923-06-29 FR FR568224D patent/FR568224A/fr not_active Expired
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