GB158526A - Improvements relating to kinematograph projection apparatus - Google Patents
Improvements relating to kinematograph projection apparatusInfo
- Publication number
- GB158526A GB158526A GB15014/20A GB1501420A GB158526A GB 158526 A GB158526 A GB 158526A GB 15014/20 A GB15014/20 A GB 15014/20A GB 1501420 A GB1501420 A GB 1501420A GB 158526 A GB158526 A GB 158526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projection apparatus
- improvements relating
- kinematograph
- kinematograph projection
- relating
- 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
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE158526X | 1920-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB158526A true GB158526A (en) | 1921-04-14 |
Family
ID=5679659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15014/20A Expired GB158526A (en) | 1920-01-30 | 1920-06-02 | Improvements relating to kinematograph projection apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB158526A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135392A (en) * | 1982-12-24 | 1984-08-30 | Dong Yang Jung Ki Ind Co Limit | Apparatus for controlling the direction of air flow from a fan |
-
1920
- 1920-06-02 GB GB15014/20A patent/GB158526A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135392A (en) * | 1982-12-24 | 1984-08-30 | Dong Yang Jung Ki Ind Co Limit | Apparatus for controlling the direction of air flow from a fan |
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