SE371301B - - Google Patents
Info
- Publication number
- SE371301B SE371301B SE474971A SE474971A SE371301B SE 371301 B SE371301 B SE 371301B SE 474971 A SE474971 A SE 474971A SE 474971 A SE474971 A SE 474971A SE 371301 B SE371301 B SE 371301B
- Authority
- SE
- Sweden
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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707013647 DE7013647U (de) | 1970-04-09 | 1970-04-09 | Tageslichtprojektor. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE371301B true SE371301B (enExample) | 1974-11-11 |
Family
ID=6610880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE474971A SE371301B (enExample) | 1970-04-09 | 1971-04-13 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH528750A (enExample) |
| DE (1) | DE7013647U (enExample) |
| DK (1) | DK126878B (enExample) |
| FR (1) | FR2083273A5 (enExample) |
| SE (1) | SE371301B (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3241956A1 (de) * | 1982-11-12 | 1984-05-17 | Demolux Gmbh & Co Kg, 6070 Langen | Stehbildwerfer |
-
1970
- 1970-04-09 DE DE19707013647 patent/DE7013647U/de not_active Expired
-
1971
- 1971-02-19 CH CH246971A patent/CH528750A/de unknown
- 1971-03-30 FR FR7111070A patent/FR2083273A5/fr not_active Expired
- 1971-04-06 DK DK163471A patent/DK126878B/da unknown
- 1971-04-13 SE SE474971A patent/SE371301B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH528750A (de) | 1972-09-30 |
| DE7013647U (de) | 1970-08-20 |
| DK126878B (da) | 1973-08-27 |
| FR2083273A5 (enExample) | 1971-12-10 |