NL6801908A - - Google Patents
Info
- Publication number
- NL6801908A NL6801908A NL6801908A NL6801908A NL6801908A NL 6801908 A NL6801908 A NL 6801908A NL 6801908 A NL6801908 A NL 6801908A NL 6801908 A NL6801908 A NL 6801908A NL 6801908 A NL6801908 A NL 6801908A
- Authority
- NL
- Netherlands
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
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
- G09B7/06—Electrically-operated teaching apparatus or devices 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 from the answers
- G09B7/08—Electrically-operated teaching apparatus or devices 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 from the answers characterised by modifying the teaching programme in response to a wrong answer, e.g. repeating the question, supplying further information
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Electrically Operated Instructional Devices (AREA)
- Toys (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61554767A | 1967-02-13 | 1967-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL6801908A true NL6801908A (US06168776-20010102-C00028.png) | 1968-08-14 |
| NL158308B NL158308B (nl) | 1978-10-16 |
Family
ID=24465861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6801908.A NL158308B (nl) | 1967-02-13 | 1968-02-09 | Onderwijsstelsel. |
Country Status (10)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3711658A (en) * | 1969-12-24 | 1973-01-16 | Borg Warner | Apparatus and method for cutting record discs |
| US3654707A (en) * | 1970-04-07 | 1972-04-11 | Borg Warner | Image positioning means for audiovisual educational apparatus |
| US3648384A (en) * | 1970-04-07 | 1972-03-14 | Borg Warner | Turntable drive release mechanism |
| US3720005A (en) * | 1971-02-12 | 1973-03-13 | Minnesota Mining & Mfg | Audio-visual system |
| US3755919A (en) * | 1971-04-29 | 1973-09-04 | Bales W | Slide projector specially adapted for self-teaching |
| US3845250A (en) * | 1972-02-22 | 1974-10-29 | Brien G O | Manual key operated message generator |
| US3818147A (en) * | 1972-02-22 | 1974-06-18 | Brien G O | Portable voice message generator |
| US4170832A (en) * | 1976-06-14 | 1979-10-16 | Zimmerman Kurt E | Interactive teaching machine |
| US4839882A (en) * | 1977-11-21 | 1989-06-13 | U. S. Philips Corporation | Record carrier with an optically readable trackwise-arranged information structure |
| US4684349A (en) * | 1984-02-15 | 1987-08-04 | Frank Ferguson | Audio-visual teaching system and method |
| US4552535A (en) * | 1984-05-18 | 1985-11-12 | Frank Warren Ferguson | Mechanical assembly for audio-visual teaching machines |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3141243A (en) * | 1961-03-27 | 1964-07-21 | Bunker Ramo | Automatic tutorial system |
| DE1242389B (de) * | 1964-03-28 | 1967-06-15 | Boelkow Gmbh | Lehrmaschine |
| FR1415547A (fr) * | 1964-05-15 | 1965-10-29 | Nouvelles Tech Radioelectrique | Machine d'enseignement |
| US3376657A (en) * | 1965-06-07 | 1968-04-09 | Dorsett Ind Inc | Audio-visual teaching machine |
| US3369307A (en) * | 1965-10-23 | 1968-02-20 | Floyd E. Shupp | Tape recorder tape viewing system and teaching machine |
| US3395464A (en) * | 1966-03-15 | 1968-08-06 | Robert Lloyd Leslie | Teaching machine systems |
| US3401470A (en) * | 1966-05-04 | 1968-09-17 | Mc Graw Edison Co | Educational apparatus |
| US3408749A (en) * | 1967-04-11 | 1968-11-05 | American Can Co | Branching-instruction teaching device |
-
1967
- 1967-02-13 US US615547A patent/US3483633A/en not_active Expired - Lifetime
-
1968
- 1968-01-29 GB GB4522/68A patent/GB1185773A/en not_active Expired
- 1968-01-30 IL IL29391A patent/IL29391A/en unknown
- 1968-01-30 IL IL36935A patent/IL36935A/xx unknown
- 1968-01-31 SE SE01286/68A patent/SE330629B/xx unknown
- 1968-02-07 FR FR1553450D patent/FR1553450A/fr not_active Expired
- 1968-02-07 BE BE710446D patent/BE710446A/xx unknown
- 1968-02-09 DE DE1622131A patent/DE1622131C3/de not_active Expired
- 1968-02-09 NL NL6801908.A patent/NL158308B/xx not_active IP Right Cessation
- 1968-02-09 CH CH194968A patent/CH487469A/fr not_active IP Right Cessation
- 1968-02-10 ES ES350369A patent/ES350369A1/es not_active Expired
-
1969
- 1969-03-29 ES ES1969147097U patent/ES147097Y/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES147097U (es) | 1969-07-01 |
| DE1622131A1 (de) | 1971-11-25 |
| CH487469A (fr) | 1970-03-15 |
| SE330629B (US06168776-20010102-C00028.png) | 1970-11-23 |
| FR1553450A (US06168776-20010102-C00028.png) | 1969-01-10 |
| DE1622131C3 (de) | 1974-03-14 |
| ES350369A1 (es) | 1969-11-16 |
| IL36935A (en) | 1972-02-29 |
| US3483633A (en) | 1969-12-16 |
| IL29391A (en) | 1971-12-29 |
| GB1185773A (en) | 1970-03-25 |
| DE1622131B2 (de) | 1973-08-16 |
| ES147097Y (es) | 1970-03-01 |
| BE710446A (US06168776-20010102-C00028.png) | 1968-06-17 |
| NL158308B (nl) | 1978-10-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SNR | Assignments of patents or rights arising from examined patent applications |
Owner name: JOSTENS LEARNING SYSTEMS, INC. |
|
| NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: BORG WARNER |
|
| V4 | Lapsed because of reaching the maximum lifetime of a patent |