| 发明名称 |
书写板 |
| 摘要 |
|
| 申请公布号 |
CN3058292D |
申请公布日期 |
1997.05.21 |
| 申请号 |
CN96311241.4 |
申请日期 |
1996.04.30 |
| 申请人 |
刘希民 |
发明人 |
刘希民 ; 刘方生 ; 滕爱玲 |
| 分类号 |
19-06-W0223 |
主分类号 |
19-06-W0223 |
| 代理机构 |
山东省专利事务所 |
代理人 |
宋永丽 |
| 主权项 |
|
| 地址 |
250022山东省济南市济微路106号建材学院 |
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