BE657560A - - Google Patents
Info
- Publication number
- BE657560A BE657560A BE657560DA BE657560A BE 657560 A BE657560 A BE 657560A BE 657560D A BE657560D A BE 657560DA BE 657560 A BE657560 A BE 657560A
- 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
- 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
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)
- Pile Receivers (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO15137463 | 1963-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE657560A true BE657560A (xx) |
Family
ID=19908895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE657560D BE657560A (xx) | 1963-12-23 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3461570A (xx) |
| AT (1) | AT261262B (xx) |
| BE (1) | BE657560A (xx) |
| DE (1) | DE1920219U (xx) |
| ES (1) | ES110609Y (xx) |
| GB (1) | GB1086918A (xx) |
| NL (1) | NL6414721A (xx) |
| OA (1) | OA00898A (xx) |
| SE (1) | SE319930B (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641853B2 (ja) * | 1986-09-29 | 1994-06-01 | 株式会社安川電機 | 多回転式絶対値エンコ−ダ |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3126646A (en) * | 1964-03-31 | Audio-visual teaching machine | ||
| US1291608A (en) * | 1916-05-26 | 1919-01-14 | Standard Parts Co | Workman's-card protector. |
| US1504256A (en) * | 1922-03-17 | 1924-08-12 | Marcuson Ellas | Paper feeding and collating device |
| US3046675A (en) * | 1960-11-16 | 1962-07-31 | Educational Aids Publishing Co | Compromise proof teaching device |
| US3106026A (en) * | 1961-06-16 | 1963-10-08 | J F Auer Inc | Teaching machine |
| US3146532A (en) * | 1961-10-18 | 1964-09-01 | Teaching Material Corp | Educational device |
| US3228118A (en) * | 1962-04-09 | 1966-01-11 | Prototech Inc | Teaching machine and the like |
| US3210864A (en) * | 1962-12-06 | 1965-10-12 | Iii James A Tillotson | Electronic device and method for testing and teaching |
-
0
- BE BE657560D patent/BE657560A/xx unknown
-
1964
- 1964-12-07 US US416267A patent/US3461570A/en not_active Expired - Lifetime
- 1964-12-08 GB GB49855/64A patent/GB1086918A/en not_active Expired
- 1964-12-17 NL NL6414721A patent/NL6414721A/xx unknown
- 1964-12-21 SE SE15481/64A patent/SE319930B/xx unknown
- 1964-12-22 DE DEJ13360U patent/DE1920219U/de not_active Expired
- 1964-12-23 AT AT1087764A patent/AT261262B/de active
- 1964-12-23 OA OA50991A patent/OA00898A/xx unknown
- 1964-12-23 ES ES110609U patent/ES110609Y/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1920219U (de) | 1965-07-22 |
| SE319930B (xx) | 1970-01-26 |
| AT261262B (de) | 1968-04-10 |
| NL6414721A (xx) | 1965-06-24 |
| GB1086918A (en) | 1967-10-11 |
| OA00898A (fr) | 1968-03-22 |
| ES110609Y (es) | 1965-08-16 |
| US3461570A (en) | 1969-08-19 |
| ES110609U (es) | 1965-02-16 |