DE9217691U1 - - Google Patents
Info
- Publication number
- DE9217691U1 DE9217691U1 DE9217691U DE9217691U DE9217691U1 DE 9217691 U1 DE9217691 U1 DE 9217691U1 DE 9217691 U DE9217691 U DE 9217691U DE 9217691 U DE9217691 U DE 9217691U DE 9217691 U1 DE9217691 U1 DE 9217691U1
- 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 - Lifetime
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
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9217691U DE9217691U1 (fr) | 1992-12-24 | 1992-12-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9217691U DE9217691U1 (fr) | 1992-12-24 | 1992-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9217691U1 true DE9217691U1 (fr) | 1993-03-11 |
Family
ID=6887575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9217691U Expired - Lifetime DE9217691U1 (fr) | 1992-12-24 | 1992-12-24 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9217691U1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006074698A1 (fr) * | 2005-01-17 | 2006-07-20 | Felix Schram | Ensemble comprenant au moins un element separateur ou paroi enroulable |
-
1992
- 1992-12-24 DE DE9217691U patent/DE9217691U1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006074698A1 (fr) * | 2005-01-17 | 2006-07-20 | Felix Schram | Ensemble comprenant au moins un element separateur ou paroi enroulable |