FR683632A - Device for the production of projection surfaces - Google Patents
Device for the production of projection surfacesInfo
- Publication number
- FR683632A FR683632A FR683632DA FR683632A FR 683632 A FR683632 A FR 683632A FR 683632D A FR683632D A FR 683632DA FR 683632 A FR683632 A FR 683632A
- Authority
- FR
- France
- Prior art keywords
- production
- projection surfaces
- 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
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/562—Screens moving during projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE683632X | 1928-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR683632A true FR683632A (en) | 1930-06-16 |
Family
ID=6597429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR683632D Expired FR683632A (en) | 1928-11-14 | 1929-09-17 | Device for the production of projection surfaces |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR683632A (en) |
-
1929
- 1929-09-17 FR FR683632D patent/FR683632A/en not_active Expired
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