CS156685B1 - - Google Patents
Info
- Publication number
- CS156685B1 CS156685B1 CS166972A CS166972A CS156685B1 CS 156685 B1 CS156685 B1 CS 156685B1 CS 166972 A CS166972 A CS 166972A CS 166972 A CS166972 A CS 166972A CS 156685 B1 CS156685 B1 CS 156685B1
- Authority
- CS
- Czechoslovakia
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electrically Operated Instructional Devices (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS166972A CS156685B1 (h) | 1972-03-13 | 1972-03-13 | |
| DE19732310521 DE2310521A1 (de) | 1972-03-13 | 1973-03-02 | Schaltung einer kontrollanlage fuer gruppenunterricht |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS166972A CS156685B1 (h) | 1972-03-13 | 1972-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS156685B1 true CS156685B1 (h) | 1974-08-23 |
Family
ID=5351628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS166972A CS156685B1 (h) | 1972-03-13 | 1972-03-13 |
Country Status (2)
| Country | Link |
|---|---|
| CS (1) | CS156685B1 (h) |
| DE (1) | DE2310521A1 (h) |
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1972
- 1972-03-13 CS CS166972A patent/CS156685B1/cs unknown
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1973
- 1973-03-02 DE DE19732310521 patent/DE2310521A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2310521A1 (de) | 1973-09-27 |