JPS61138585U - - Google Patents
Info
- Publication number
- JPS61138585U JPS61138585U JP1998785U JP1998785U JPS61138585U JP S61138585 U JPS61138585 U JP S61138585U JP 1998785 U JP1998785 U JP 1998785U JP 1998785 U JP1998785 U JP 1998785U JP S61138585 U JPS61138585 U JP S61138585U
- Authority
- JP
- Japan
- Prior art keywords
- suction
- blowing
- blackboard
- air blowing
- view
- 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
- 238000007664 blowing Methods 0.000 claims description 6
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1998785U JPS61138585U (de) | 1985-02-16 | 1985-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1998785U JPS61138585U (de) | 1985-02-16 | 1985-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138585U true JPS61138585U (de) | 1986-08-28 |
Family
ID=30510062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1998785U Pending JPS61138585U (de) | 1985-02-16 | 1985-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138585U (de) |
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1985
- 1985-02-16 JP JP1998785U patent/JPS61138585U/ja active Pending