JPS50133832A - - Google Patents
Info
- Publication number
- JPS50133832A JPS50133832A JP3943274A JP3943274A JPS50133832A JP S50133832 A JPS50133832 A JP S50133832A JP 3943274 A JP3943274 A JP 3943274A JP 3943274 A JP3943274 A JP 3943274A JP S50133832 A JPS50133832 A JP S50133832A
- 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
- Lenses (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Lens Barrels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3943274A JPS50133832A (en) | 1974-04-09 | 1974-04-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3943274A JPS50133832A (en) | 1974-04-09 | 1974-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS50133832A true JPS50133832A (en) | 1975-10-23 |
Family
ID=12552823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3943274A Pending JPS50133832A (en) | 1974-04-09 | 1974-04-09 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS50133832A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS599332U (en) * | 1982-07-12 | 1984-01-21 | 株式会社学習研究社 | Overhead projector using variable focus lens |
JPS59228223A (en) * | 1983-06-09 | 1984-12-21 | Olympus Optical Co Ltd | Adapter lens |
JPS61148044U (en) * | 1985-03-05 | 1986-09-12 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4890525A (en) * | 1972-03-01 | 1973-11-26 |
-
1974
- 1974-04-09 JP JP3943274A patent/JPS50133832A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4890525A (en) * | 1972-03-01 | 1973-11-26 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS599332U (en) * | 1982-07-12 | 1984-01-21 | 株式会社学習研究社 | Overhead projector using variable focus lens |
JPS59228223A (en) * | 1983-06-09 | 1984-12-21 | Olympus Optical Co Ltd | Adapter lens |
JPH0411005B2 (en) * | 1983-06-09 | 1992-02-27 | ||
JPS61148044U (en) * | 1985-03-05 | 1986-09-12 |