JPS61171075U - - Google Patents
Info
- Publication number
- JPS61171075U JPS61171075U JP5214785U JP5214785U JPS61171075U JP S61171075 U JPS61171075 U JP S61171075U JP 5214785 U JP5214785 U JP 5214785U JP 5214785 U JP5214785 U JP 5214785U JP S61171075 U JPS61171075 U JP S61171075U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- learning set
- cap
- teaching materials
- optical learning
- Prior art date
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 4
- 239000000463 material Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Instructional Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5214785U JPH0339803Y2 (https=) | 1985-04-10 | 1985-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5214785U JPH0339803Y2 (https=) | 1985-04-10 | 1985-04-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61171075U true JPS61171075U (https=) | 1986-10-23 |
| JPH0339803Y2 JPH0339803Y2 (https=) | 1991-08-21 |
Family
ID=30571837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5214785U Expired JPH0339803Y2 (https=) | 1985-04-10 | 1985-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339803Y2 (https=) |
-
1985
- 1985-04-10 JP JP5214785U patent/JPH0339803Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339803Y2 (https=) | 1991-08-21 |