FR476437A - - Google Patents
Info
- Publication number
- FR476437A FR476437A FR476437DA FR476437A FR 476437 A FR476437 A FR 476437A FR 476437D A FR476437D A FR 476437DA FR 476437 A FR476437 A FR 476437A
- 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
- G03B21/08—Projectors or projection-type viewers; Accessories therefor affording epidiascopic projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR476437T | 1914-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR476437A true FR476437A (de) | 1915-08-03 |
Family
ID=1514217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR476437D Expired FR476437A (de) | 1914-11-04 | 1914-11-04 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR476437A (de) |
-
1914
- 1914-11-04 FR FR476437D patent/FR476437A/fr not_active Expired