DE3313699C2 - - Google Patents
Info
- Publication number
- DE3313699C2 DE3313699C2 DE19833313699 DE3313699A DE3313699C2 DE 3313699 C2 DE3313699 C2 DE 3313699C2 DE 19833313699 DE19833313699 DE 19833313699 DE 3313699 A DE3313699 A DE 3313699A DE 3313699 C2 DE3313699 C2 DE 3313699C2
- Authority
- DE
- Germany
- 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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833313699 DE3313699A1 (de) | 1983-04-15 | 1983-04-15 | Projektor |
EP83108487A EP0104465B1 (de) | 1982-09-02 | 1983-08-29 | Overhead-Projektor |
AT83108487T ATE23408T1 (de) | 1982-09-02 | 1983-08-29 | Overhead-projektor. |
US06/529,036 US4565430A (en) | 1982-09-02 | 1983-09-02 | Overhead projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833313699 DE3313699A1 (de) | 1983-04-15 | 1983-04-15 | Projektor |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3313699A1 DE3313699A1 (de) | 1984-10-18 |
DE3313699C2 true DE3313699C2 (US07223432-20070529-C00017.png) | 1987-05-07 |
Family
ID=6196492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833313699 Granted DE3313699A1 (de) | 1982-09-02 | 1983-04-15 | Projektor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3313699A1 (US07223432-20070529-C00017.png) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7514550U (de) * | 1975-05-06 | 1976-11-04 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen | Vorrichtung zum haltern einer aus lampe und reflektor bestehenden baueinheit |
-
1983
- 1983-04-15 DE DE19833313699 patent/DE3313699A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3313699A1 (de) | 1984-10-18 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GRUNWALD PROJEKTOREN AG, RUGGELL, LI |
|
8328 | Change in the person/name/address of the agent |
Free format text: JUNIUS, W., DIPL.-PHYS. DR., PAT.-ANW., 30519 HANNOVER |
|
8339 | Ceased/non-payment of the annual fee |