JPS4933637A - - Google Patents
Info
- Publication number
- JPS4933637A JPS4933637A JP7354172A JP7354172A JPS4933637A JP S4933637 A JPS4933637 A JP S4933637A JP 7354172 A JP7354172 A JP 7354172A JP 7354172 A JP7354172 A JP 7354172A JP S4933637 A JPS4933637 A JP S4933637A
- 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.)
- Pending
Links
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7354172A JPS4933637A (hu) | 1972-07-22 | 1972-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7354172A JPS4933637A (hu) | 1972-07-22 | 1972-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4933637A true JPS4933637A (hu) | 1974-03-28 |
Family
ID=13521184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7354172A Pending JPS4933637A (hu) | 1972-07-22 | 1972-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4933637A (hu) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB862594A (en) * | 1957-01-31 | 1961-03-15 | Donald Godfrey Gumpertz | Improved optical projection apparatus |
-
1972
- 1972-07-22 JP JP7354172A patent/JPS4933637A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB862594A (en) * | 1957-01-31 | 1961-03-15 | Donald Godfrey Gumpertz | Improved optical projection apparatus |