FR2166686A5 - - Google Patents
Info
- Publication number
- FR2166686A5 FR2166686A5 FR7200020A FR7200020A FR2166686A5 FR 2166686 A5 FR2166686 A5 FR 2166686A5 FR 7200020 A FR7200020 A FR 7200020A FR 7200020 A FR7200020 A FR 7200020A FR 2166686 A5 FR2166686 A5 FR 2166686A5
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- G09B3/06—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made
- G09B3/08—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made of chart form
- G09B3/085—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made of chart form with invisibly printed correct answer; the answer being rendered visible by special optical means, e.g. filters; mirrors
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7200020A FR2166686A5 (enExample) | 1972-01-03 | 1972-01-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7200020A FR2166686A5 (enExample) | 1972-01-03 | 1972-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2166686A5 true FR2166686A5 (enExample) | 1973-08-17 |
Family
ID=9091430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7200020A Expired FR2166686A5 (enExample) | 1972-01-03 | 1972-01-03 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2166686A5 (enExample) |
-
1972
- 1972-01-03 FR FR7200020A patent/FR2166686A5/fr not_active Expired