NL7308987A - - Google Patents
Info
- Publication number
- NL7308987A NL7308987A NL7308987A NL7308987A NL7308987A NL 7308987 A NL7308987 A NL 7308987A NL 7308987 A NL7308987 A NL 7308987A NL 7308987 A NL7308987 A NL 7308987A NL 7308987 A NL7308987 A NL 7308987A
- Authority
- NL
- Netherlands
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
- G03B21/115—Projectors with built-in or built-on screen for microfilm reading of microfiches
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Microscoopes, Condenser (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3011272 | 1972-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7308987A true NL7308987A (en:Method) | 1974-01-02 |
Family
ID=10302469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7308987A NL7308987A (en:Method) | 1972-06-27 | 1973-06-27 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE7323709U (en:Method) |
| FR (1) | FR2191758A5 (en:Method) |
| NL (1) | NL7308987A (en:Method) |
-
1973
- 1973-06-25 FR FR7323078A patent/FR2191758A5/fr not_active Expired
- 1973-06-26 DE DE19737323709 patent/DE7323709U/de not_active Expired
- 1973-06-27 NL NL7308987A patent/NL7308987A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE7323709U (de) | 1973-10-31 |
| FR2191758A5 (en) | 1974-02-01 |