FR408740A - - Google Patents
Info
- Publication number
- FR408740A FR408740A FR408740DA FR408740A FR 408740 A FR408740 A FR 408740A FR 408740D A FR408740D A FR 408740DA FR 408740 A FR408740 A FR 408740A
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR408740A true FR408740A (pl) | 1900-01-01 |
Family
ID=1452937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR408740D Expired FR408740A (pl) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR408740A (pl) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE750028C (de) * | 1941-02-05 | 1944-12-11 | Bildwerfer mit einem Schutzgehaeuse |
-
0
- FR FR408740D patent/FR408740A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE750028C (de) * | 1941-02-05 | 1944-12-11 | Bildwerfer mit einem Schutzgehaeuse |