NL7207949A - - Google Patents
Info
- Publication number
- NL7207949A NL7207949A NL7207949A NL7207949A NL7207949A NL 7207949 A NL7207949 A NL 7207949A NL 7207949 A NL7207949 A NL 7207949A NL 7207949 A NL7207949 A NL 7207949A NL 7207949 A NL7207949 A NL 7207949A
- 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
- G03B21/54—Accessories
- G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Sheet Holders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES1971169991U ES169991Y (es) | 1971-06-16 | 1971-06-16 | Marco porta-diapositivas mejorado. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7207949A true NL7207949A (xx) | 1972-12-19 |
Family
ID=8345697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7207949A NL7207949A (xx) | 1971-06-16 | 1972-06-12 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE784935A (xx) |
| CH (1) | CH548043A (xx) |
| DE (1) | DE7222388U (xx) |
| ES (1) | ES169991Y (xx) |
| FR (1) | FR2142461A5 (xx) |
| NL (1) | NL7207949A (xx) |
-
1971
- 1971-06-16 ES ES1971169991U patent/ES169991Y/es not_active Expired
-
1972
- 1972-06-09 CH CH860772A patent/CH548043A/xx not_active IP Right Cessation
- 1972-06-12 NL NL7207949A patent/NL7207949A/xx unknown
- 1972-06-15 BE BE784935A patent/BE784935A/xx unknown
- 1972-06-15 FR FR7221550A patent/FR2142461A5/fr not_active Expired
- 1972-06-15 DE DE19727222388U patent/DE7222388U/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES169991Y (es) | 1972-04-16 |
| CH548043A (de) | 1974-04-11 |
| BE784935A (fr) | 1972-10-02 |
| FR2142461A5 (xx) | 1973-01-26 |
| DE7222388U (de) | 1972-09-21 |
| ES169991U (es) | 1971-10-16 |