JPS62144690U - - Google Patents
Info
- Publication number
- JPS62144690U JPS62144690U JP3309586U JP3309586U JPS62144690U JP S62144690 U JPS62144690 U JP S62144690U JP 3309586 U JP3309586 U JP 3309586U JP 3309586 U JP3309586 U JP 3309586U JP S62144690 U JPS62144690 U JP S62144690U
- Authority
- JP
- Japan
- Prior art keywords
- board
- internal space
- blackboard
- overlapped
- synthetic resin
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3309586U JPS62144690U (en, 2012) | 1986-03-06 | 1986-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3309586U JPS62144690U (en, 2012) | 1986-03-06 | 1986-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62144690U true JPS62144690U (en, 2012) | 1987-09-11 |
Family
ID=30840382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3309586U Pending JPS62144690U (en, 2012) | 1986-03-06 | 1986-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62144690U (en, 2012) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4993125A (en, 2012) * | 1972-12-30 | 1974-09-05 |
-
1986
- 1986-03-06 JP JP3309586U patent/JPS62144690U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4993125A (en, 2012) * | 1972-12-30 | 1974-09-05 |