JPH01171446U - - Google Patents
Info
- Publication number
- JPH01171446U JPH01171446U JP6422588U JP6422588U JPH01171446U JP H01171446 U JPH01171446 U JP H01171446U JP 6422588 U JP6422588 U JP 6422588U JP 6422588 U JP6422588 U JP 6422588U JP H01171446 U JPH01171446 U JP H01171446U
- Authority
- JP
- Japan
- Prior art keywords
- base
- support means
- use position
- upright
- upright holding
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988064225U JPH0740993Y2 (ja) | 1988-05-16 | 1988-05-16 | 折り畳み光学装置 |
| US07/352,542 US4938587A (en) | 1988-05-16 | 1989-05-16 | Foldable optical apparatus |
| DE3915918A DE3915918A1 (de) | 1988-05-16 | 1989-05-16 | Optisches geraet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988064225U JPH0740993Y2 (ja) | 1988-05-16 | 1988-05-16 | 折り畳み光学装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01171446U true JPH01171446U (enExample) | 1989-12-05 |
| JPH0740993Y2 JPH0740993Y2 (ja) | 1995-09-20 |
Family
ID=31289699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988064225U Expired - Lifetime JPH0740993Y2 (ja) | 1988-05-16 | 1988-05-16 | 折り畳み光学装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740993Y2 (enExample) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190543U (enExample) * | 1985-05-20 | 1986-11-27 | ||
| JPS6243349U (enExample) * | 1985-09-05 | 1987-03-16 |
-
1988
- 1988-05-16 JP JP1988064225U patent/JPH0740993Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190543U (enExample) * | 1985-05-20 | 1986-11-27 | ||
| JPS6243349U (enExample) * | 1985-09-05 | 1987-03-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740993Y2 (ja) | 1995-09-20 |