JPS6255489U - - Google Patents
Info
- Publication number
- JPS6255489U JPS6255489U JP14886985U JP14886985U JPS6255489U JP S6255489 U JPS6255489 U JP S6255489U JP 14886985 U JP14886985 U JP 14886985U JP 14886985 U JP14886985 U JP 14886985U JP S6255489 U JPS6255489 U JP S6255489U
- Authority
- JP
- Japan
- Prior art keywords
- blackboard
- chalk
- suck
- powder
- board
- 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
- 239000000843 powder Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14886985U JPS6255489U (US08063081-20111122-C00242.png) | 1985-09-27 | 1985-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14886985U JPS6255489U (US08063081-20111122-C00242.png) | 1985-09-27 | 1985-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6255489U true JPS6255489U (US08063081-20111122-C00242.png) | 1987-04-06 |
Family
ID=31063540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14886985U Pending JPS6255489U (US08063081-20111122-C00242.png) | 1985-09-27 | 1985-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6255489U (US08063081-20111122-C00242.png) |
-
1985
- 1985-09-27 JP JP14886985U patent/JPS6255489U/ja active Pending
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