JPS549098B2 - - Google Patents
Info
- Publication number
- JPS549098B2 JPS549098B2 JP473973A JP473973A JPS549098B2 JP S549098 B2 JPS549098 B2 JP S549098B2 JP 473973 A JP473973 A JP 473973A JP 473973 A JP473973 A JP 473973A JP S549098 B2 JPS549098 B2 JP S549098B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Electrically Operated Instructional Devices (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP473973A JPS549098B2 (nl) | 1973-01-08 | 1973-01-08 | |
US05/550,487 US4005530A (en) | 1973-01-08 | 1975-02-18 | Audio-visual training device with selective branching |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP473973A JPS549098B2 (nl) | 1973-01-08 | 1973-01-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS4993131A JPS4993131A (nl) | 1974-09-05 |
JPS549098B2 true JPS549098B2 (nl) | 1979-04-21 |
Family
ID=11592269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP473973A Expired JPS549098B2 (nl) | 1973-01-08 | 1973-01-08 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS549098B2 (nl) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL173449C (nl) * | 1975-08-08 | 1984-01-16 | Hermans Antonius | Inrichting voor visuele communicatie. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4951026A (nl) * | 1972-09-19 | 1974-05-17 |
-
1973
- 1973-01-08 JP JP473973A patent/JPS549098B2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4951026A (nl) * | 1972-09-19 | 1974-05-17 |
Also Published As
Publication number | Publication date |
---|---|
JPS4993131A (nl) | 1974-09-05 |