JPH01149179U - - Google Patents
Info
- Publication number
- JPH01149179U JPH01149179U JP4491488U JP4491488U JPH01149179U JP H01149179 U JPH01149179 U JP H01149179U JP 4491488 U JP4491488 U JP 4491488U JP 4491488 U JP4491488 U JP 4491488U JP H01149179 U JPH01149179 U JP H01149179U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- screen frame
- main body
- locking
- screen plate
- Prior art date
- 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.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4491488U JPH01149179U (da) | 1988-04-01 | 1988-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4491488U JPH01149179U (da) | 1988-04-01 | 1988-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149179U true JPH01149179U (da) | 1989-10-16 |
Family
ID=31271249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4491488U Pending JPH01149179U (da) | 1988-04-01 | 1988-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149179U (da) |
-
1988
- 1988-04-01 JP JP4491488U patent/JPH01149179U/ja active Pending