BE676878A - - Google Patents
Info
- Publication number
- BE676878A BE676878A BE676878DA BE676878A BE 676878 A BE676878 A BE 676878A BE 676878D A BE676878D A BE 676878DA BE 676878 A BE676878 A BE 676878A
- Authority
- BE
- Belgium
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
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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)
- Automatic Disk Changers (AREA)
- Conveying Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6502226A NL6502226A (en:Method) | 1965-02-23 | 1965-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE676878A true BE676878A (en:Method) | 1966-08-22 |
Family
ID=19792453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE676878D BE676878A (en:Method) | 1965-02-23 | 1966-02-22 |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT261263B (en:Method) |
| BE (1) | BE676878A (en:Method) |
| CH (1) | CH457934A (en:Method) |
| ES (1) | ES323350A1 (en:Method) |
| NL (1) | NL6502226A (en:Method) |
-
1965
- 1965-02-23 NL NL6502226A patent/NL6502226A/xx unknown
-
1966
- 1966-02-21 ES ES0323350A patent/ES323350A1/es not_active Expired
- 1966-02-21 CH CH246266A patent/CH457934A/de unknown
- 1966-02-21 AT AT157066A patent/AT261263B/de active
- 1966-02-22 BE BE676878D patent/BE676878A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES323350A1 (es) | 1967-01-01 |
| AT261263B (de) | 1968-04-10 |
| CH457934A (de) | 1968-06-15 |
| NL6502226A (en:Method) | 1966-08-24 |