LU49784A1 - - Google Patents
Info
- Publication number
- LU49784A1 LU49784A1 LU49784A LU49784A LU49784A1 LU 49784 A1 LU49784 A1 LU 49784A1 LU 49784 A LU49784 A LU 49784A LU 49784 A LU49784 A LU 49784A LU 49784 A1 LU49784 A1 LU 49784A1
- Authority
- LU
- Luxembourg
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
- G09B3/00—Manually or mechanically operated teaching appliances working with questions and answers
- G09B3/02—Manually or mechanically operated teaching appliances working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student
- G09B3/04—Manually or mechanically operated teaching appliances working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student of chart form
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU49784A LU49784A1 (en) | 1965-11-05 | 1965-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU49784A LU49784A1 (en) | 1965-11-05 | 1965-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU49784A1 true LU49784A1 (en) | 1966-01-05 |
Family
ID=19724548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU49784A LU49784A1 (en) | 1965-11-05 | 1965-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU49784A1 (en) |
-
1965
- 1965-11-05 LU LU49784A patent/LU49784A1/xx unknown