JPS5220247U - - Google Patents
Info
- Publication number
- JPS5220247U JPS5220247U JP1975106077U JP10607775U JPS5220247U JP S5220247 U JPS5220247 U JP S5220247U JP 1975106077 U JP1975106077 U JP 1975106077U JP 10607775 U JP10607775 U JP 10607775U JP S5220247 U JPS5220247 U JP S5220247U
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Optical Elements Other Than Lenses (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975106077U JPS6039841Y2 (ja) | 1975-07-31 | 1975-07-31 | 光拡散板 |
| US05/672,930 US4083626A (en) | 1975-04-04 | 1976-04-02 | Rear projection screens |
| DE19762614606 DE2614606A1 (de) | 1975-04-04 | 1976-04-05 | Rueckprojektionsbildwand |
| GB13764/76A GB1548944A (en) | 1975-04-04 | 1976-04-05 | Rear projection screens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975106077U JPS6039841Y2 (ja) | 1975-07-31 | 1975-07-31 | 光拡散板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5220247U true JPS5220247U (en:Method) | 1977-02-14 |
| JPS6039841Y2 JPS6039841Y2 (ja) | 1985-11-29 |
Family
ID=28587346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975106077U Expired JPS6039841Y2 (ja) | 1975-04-04 | 1975-07-31 | 光拡散板 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039841Y2 (en:Method) |
-
1975
- 1975-07-31 JP JP1975106077U patent/JPS6039841Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6039841Y2 (ja) | 1985-11-29 |