BE735690A - - Google Patents
Info
- Publication number
- BE735690A BE735690A BE735690DA BE735690A BE 735690 A BE735690 A BE 735690A BE 735690D A BE735690D A BE 735690DA BE 735690 A BE735690 A BE 735690A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/10—Projectors with built-in or built-on screen
- G03B21/11—Projectors with built-in or built-on screen for microfilm reading
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4707768 | 1968-07-07 | ||
| JP4797268 | 1968-07-09 | ||
| JP43052688A JPS518333B1 (en) | 1968-07-25 | 1968-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE735690A true BE735690A (en) | 1969-12-16 |
Family
ID=27292861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE735690D BE735690A (en) | 1968-07-07 | 1969-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE735690A (en) |
-
1969
- 1969-07-04 BE BE735690D patent/BE735690A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1934125A1 (en) | 1970-02-12 |
| DE1934125B2 (en) | 1972-10-12 |