JPS644101Y2 - - Google Patents
Info
- Publication number
- JPS644101Y2 JPS644101Y2 JP14302779U JP14302779U JPS644101Y2 JP S644101 Y2 JPS644101 Y2 JP S644101Y2 JP 14302779 U JP14302779 U JP 14302779U JP 14302779 U JP14302779 U JP 14302779U JP S644101 Y2 JPS644101 Y2 JP S644101Y2
- Authority
- JP
- Japan
- Prior art keywords
- stage
- lens
- main body
- overhead projector
- projection
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 description 8
- 230000006378 damage Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14302779U JPS644101Y2 (pm) | 1979-10-16 | 1979-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14302779U JPS644101Y2 (pm) | 1979-10-16 | 1979-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5660933U JPS5660933U (pm) | 1981-05-23 |
| JPS644101Y2 true JPS644101Y2 (pm) | 1989-02-02 |
Family
ID=29374280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14302779U Expired JPS644101Y2 (pm) | 1979-10-16 | 1979-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS644101Y2 (pm) |
-
1979
- 1979-10-16 JP JP14302779U patent/JPS644101Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5660933U (pm) | 1981-05-23 |
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