BE659452A - - Google Patents
Info
- Publication number
- BE659452A BE659452A BE659452A BE659452A BE659452A BE 659452 A BE659452 A BE 659452A BE 659452 A BE659452 A BE 659452A BE 659452 A BE659452 A BE 659452A BE 659452 A BE659452 A BE 659452A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
- G09B5/10—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations all student stations being capable of presenting the same information simultaneously
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR964693A FR1442268A (fr) | 1964-02-21 | 1964-02-21 | Perfectionnements aux systèmes de vision collective |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE659452A true BE659452A (US07652168-20100126-C00068.png) | 1965-08-09 |
Family
ID=8823756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE659452A BE659452A (US07652168-20100126-C00068.png) | 1964-02-21 | 1965-02-09 |
Country Status (9)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ537028A (en) | 2004-12-06 | 2007-07-27 | Manfred Frank Systems Ltd | A hinge |
-
1964
- 1964-02-21 FR FR964693A patent/FR1442268A/fr not_active Expired
-
1965
- 1965-02-09 BE BE659452A patent/BE659452A/xx unknown
- 1965-02-12 GB GB628365A patent/GB1049433A/en not_active Expired
- 1965-02-15 AT AT130265A patent/AT251060B/de active
- 1965-02-16 IL IL2299765A patent/IL22997A/xx unknown
- 1965-02-19 CH CH228065A patent/CH415103A/fr unknown
- 1965-02-19 ES ES0309328A patent/ES309328A1/es not_active Expired
- 1965-02-19 SE SE218265A patent/SE213235C1/xx unknown
- 1965-02-20 DK DK89965A patent/DK108436C/da active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1049433A (en) | 1966-11-30 |
| ES309328A1 (es) | 1965-05-16 |
| IL22997A (en) | 1969-01-29 |
| SE213235C1 (US07652168-20100126-C00068.png) | 1967-05-30 |
| CH415103A (fr) | 1966-06-15 |
| FR1442268A (fr) | 1966-06-17 |
| AT251060B (de) | 1966-12-12 |
| DK108436C (da) | 1967-12-11 |
