NL6903257A - - Google Patents
Info
- Publication number
- NL6903257A NL6903257A NL6903257A NL6903257A NL6903257A NL 6903257 A NL6903257 A NL 6903257A NL 6903257 A NL6903257 A NL 6903257A NL 6903257 A NL6903257 A NL 6903257A NL 6903257 A NL6903257 A NL 6903257A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/04—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw
- G11B21/043—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw for stationary discs
-
- 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
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/062—Combinations of audio and printed presentations, e.g. magnetically striped cards, talking books, magnetic tapes with printed texts thereon
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1021768A GB1255961A (en) | 1968-03-01 | 1968-03-01 | Improvements in or relating to teaching machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6903257A true NL6903257A (enrdf_load_stackoverflow) | 1969-09-03 |
Family
ID=9963765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6903257A NL6903257A (enrdf_load_stackoverflow) | 1968-03-01 | 1969-03-03 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE729166A (enrdf_load_stackoverflow) |
| CH (1) | CH493053A (enrdf_load_stackoverflow) |
| FR (1) | FR2003065A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1255961A (enrdf_load_stackoverflow) |
| NL (1) | NL6903257A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1564021A (en) * | 1975-10-18 | 1980-04-02 | Ricoh Kk | Recording reproducer |
| US4195844A (en) * | 1977-07-13 | 1980-04-01 | Matsushita Electric Industrial Co., Ltd. | Audiovisual card reproducing device |
| GB2016783B (en) * | 1978-01-26 | 1982-04-21 | Shinano Kikaku Co Ltd | Recording medium for audio-visual teaching machines |
-
1968
- 1968-03-01 GB GB1021768A patent/GB1255961A/en not_active Expired
-
1969
- 1969-02-28 CH CH309069A patent/CH493053A/de not_active IP Right Cessation
- 1969-02-28 BE BE729166D patent/BE729166A/xx unknown
- 1969-02-28 FR FR6905580A patent/FR2003065A1/fr not_active Withdrawn
- 1969-03-03 NL NL6903257A patent/NL6903257A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE729166A (enrdf_load_stackoverflow) | 1969-08-01 |
| CH493053A (de) | 1970-06-30 |
| GB1255961A (en) | 1971-12-08 |
| FR2003065A1 (enrdf_load_stackoverflow) | 1969-11-07 |