IT454498A - - Google Patents
Info
- Publication number
- IT454498A IT454498A IT454498DA IT454498A IT 454498 A IT454498 A IT 454498A IT 454498D A IT454498D A IT 454498DA IT 454498 A IT454498 A IT 454498A
- Authority
- IT
- Italy
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
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1043551T | 1948-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT454498A true IT454498A (da) |
Family
ID=9590623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT454498D IT454498A (da) | 1948-06-02 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1043551A (da) |
| IT (1) | IT454498A (da) |
-
0
- IT IT454498D patent/IT454498A/it unknown
-
1948
- 1948-06-02 FR FR1043551D patent/FR1043551A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1043551A (fr) | 1953-11-10 |