NL155965B - Instructie-inrichting. - Google Patents
Instructie-inrichting.Info
- Publication number
- NL155965B NL155965B NL7014442.A NL7014442A NL155965B NL 155965 B NL155965 B NL 155965B NL 7014442 A NL7014442 A NL 7014442A NL 155965 B NL155965 B NL 155965B
- Authority
- NL
- Netherlands
- Prior art keywords
- instruction device
- instruction
- Prior art date
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
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7939569 | 1969-10-02 | ||
JP8094569A JPS4941819B1 (nl) | 1969-10-08 | 1969-10-08 | |
JP44081347A JPS4922134B1 (nl) | 1969-10-11 | 1969-10-11 | |
JP8134869A JPS5114248B1 (nl) | 1969-10-11 | 1969-10-11 | |
JP44082834A JPS4944166B1 (nl) | 1969-10-15 | 1969-10-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL7014442A NL7014442A (nl) | 1971-04-06 |
NL155965B true NL155965B (nl) | 1978-02-15 |
Family
ID=27524787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7014442.A NL155965B (nl) | 1969-10-02 | 1970-10-01 | Instructie-inrichting. |
Country Status (5)
Country | Link |
---|---|
US (1) | US3699670A (nl) |
DE (1) | DE2048565A1 (nl) |
FR (1) | FR2064876A5 (nl) |
GB (1) | GB1330666A (nl) |
NL (1) | NL155965B (nl) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3904975A (en) * | 1973-04-26 | 1975-09-09 | Olympus Optical Co | Automatic gain control circuit |
US4157575A (en) * | 1975-08-19 | 1979-06-05 | Olympus Optical Co., Ltd. | Tape end warning apparatus |
US4199792A (en) * | 1975-02-12 | 1980-04-22 | Olympus Optical Company, Ltd. | Tape end warning apparatus |
US4070106A (en) * | 1975-04-22 | 1978-01-24 | Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.) | Short circuit for recording head of simultaneous recording cine camera |
US4179716A (en) * | 1975-08-19 | 1979-12-18 | Olympus Optical Company, Ltd. | Tape end warning apparatus |
US4232348A (en) * | 1975-08-19 | 1980-11-04 | Olympus Optical Co., Ltd. | Tape end warning apparatus |
KR960038699A (ko) * | 1995-04-28 | 1996-11-21 | 김광호 | 어학 학습기의 암송시간 제어방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2491243A (en) * | 1945-04-02 | 1949-12-13 | Soundscriber Corp | Electric braking means for producing a fast stop in phonograph motors |
US2787669A (en) * | 1955-06-21 | 1957-04-02 | Flan | Control mechanism responsive to a recorded signal |
US3059347A (en) * | 1959-07-20 | 1962-10-23 | Audiotronics Corp | Phonograph apparatus for foreign language instruction |
US3245156A (en) * | 1963-09-23 | 1966-04-12 | Northrop Corp | Audio-visual display system |
-
1970
- 1970-09-28 US US76161A patent/US3699670A/en not_active Expired - Lifetime
- 1970-09-29 GB GB4638570A patent/GB1330666A/en not_active Expired
- 1970-10-01 FR FR7035516A patent/FR2064876A5/fr not_active Expired
- 1970-10-01 NL NL7014442.A patent/NL155965B/nl not_active IP Right Cessation
- 1970-10-02 DE DE19702048565 patent/DE2048565A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US3699670A (en) | 1972-10-24 |
NL7014442A (nl) | 1971-04-06 |
FR2064876A5 (nl) | 1971-07-23 |
GB1330666A (en) | 1973-09-19 |
DE2048565A1 (de) | 1971-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: MATSUS ELEC |