BE696874A - - Google Patents
Info
- Publication number
- BE696874A BE696874A BE696874DA BE696874A BE 696874 A BE696874 A BE 696874A BE 696874D A BE696874D A BE 696874DA BE 696874 A BE696874 A BE 696874A
- 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
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60062766A | 1966-12-09 | 1966-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE696874A true BE696874A (mo) | 1967-09-18 |
Family
ID=24404378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE696874D BE696874A (mo) | 1966-12-09 | 1967-04-11 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE696874A (mo) |
| CH (1) | CH461151A (mo) |
| DE (1) | DE1547492A1 (mo) |
| ES (1) | ES339019A1 (mo) |
| GB (1) | GB1160464A (mo) |
-
1967
- 1967-03-03 GB GB1025167A patent/GB1160464A/en not_active Expired
- 1967-04-07 ES ES339019A patent/ES339019A1/es not_active Expired
- 1967-04-11 BE BE696874D patent/BE696874A/xx unknown
- 1967-04-19 DE DE19671547492 patent/DE1547492A1/de active Pending
- 1967-04-21 CH CH571567A patent/CH461151A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH461151A (de) | 1968-08-15 |
| DE1547492A1 (de) | 1969-11-06 |
| GB1160464A (en) | 1969-08-06 |
| ES339019A1 (es) | 1968-04-16 |