BE724424A - - Google Patents
Info
- Publication number
- BE724424A BE724424A BE724424DA BE724424A BE 724424 A BE724424 A BE 724424A BE 724424D A BE724424D A BE 724424DA BE 724424 A BE724424 A BE 724424A
- 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
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
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)
- Recording Or Reproducing By Magnetic Means (AREA)
- Electrically Operated Instructional Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA9438 | 1968-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE724424A true BE724424A (US07922777-20110412-C00004.png) | 1969-05-02 |
Family
ID=4083973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE724424D BE724424A (US07922777-20110412-C00004.png) | 1968-01-09 | 1968-11-25 |
Country Status (11)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3693182A (en) * | 1970-08-31 | 1972-09-19 | Honeywell Inc | Card recorder for transcribing magnetic information |
| US3864746A (en) * | 1973-08-13 | 1975-02-04 | Edward S Burgess | End of message unit for use in push to talk microphones |
| US4044393A (en) * | 1975-07-14 | 1977-08-23 | Upaya, Inc. | Hand guided tape player |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2281405A (en) * | 1938-05-11 | 1942-04-28 | Barrish Robert Lloyd | Method and apparatus for transmission of signals |
| US2886650A (en) * | 1952-10-22 | 1959-05-12 | Univ Illinois | Recording device |
| US2822425A (en) * | 1954-09-14 | 1958-02-04 | Walter R Hicks | Book with sound track speaking head guided by opposite page |
| US3341854A (en) * | 1963-04-24 | 1967-09-12 | Ibm | Modulating magnetic record transfer means |
| US3315242A (en) * | 1963-04-24 | 1967-04-18 | Ibm | Modulation and transfer of information achieved by speed differential |
-
1968
- 1968-05-20 US US730559A patent/US3529101A/en not_active Expired - Lifetime
- 1968-05-22 CH CH764468A patent/CH469318A/fr unknown
- 1968-11-09 DE DE19681811730 patent/DE1811730B2/de active Granted
- 1968-11-19 GB GB54897/68A patent/GB1205466A/en not_active Expired
- 1968-11-22 NL NL6816686.A patent/NL155964B/xx unknown
- 1968-11-25 BE BE724424D patent/BE724424A/xx unknown
- 1968-12-03 OA OA53443A patent/OA02948A/xx unknown
- 1968-12-10 FR FR1599196D patent/FR1599196A/fr not_active Expired
- 1968-12-19 AT AT1235968A patent/AT292330B/de not_active IP Right Cessation
- 1968-12-23 SE SE17778/68A patent/SE331764B/xx unknown
- 1968-12-31 ES ES362014A patent/ES362014A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1811730A1 (de) | 1969-07-24 |
| AT292330B (de) | 1971-08-25 |
| NL6816686A (US07922777-20110412-C00004.png) | 1969-07-11 |
| CH469318A (fr) | 1969-02-28 |
| FR1599196A (US07922777-20110412-C00004.png) | 1970-07-15 |
| GB1205466A (en) | 1970-09-16 |
| SE331764B (US07922777-20110412-C00004.png) | 1971-01-11 |
| DE1811730C3 (US07922777-20110412-C00004.png) | 1973-11-15 |
| US3529101A (en) | 1970-09-15 |
| NL155964B (nl) | 1978-02-15 |
| OA02948A (fr) | 1970-12-15 |
| DE1811730B2 (de) | 1973-04-19 |
| ES362014A1 (es) | 1970-09-01 |
