| 发明名称 |
圆珠笔的笔头 |
| 摘要 |
|
| 申请公布号 |
CN3107075D |
申请公布日期 |
1999.04.07 |
| 申请号 |
CN98322377.7 |
申请日期 |
1998.02.26 |
| 申请人 |
百乐墨水株式会社 |
发明人 |
井户干也 |
| 分类号 |
19-06-N0045 |
主分类号 |
19-06-N0045 |
| 代理机构 |
中国专利代理(香港)有限公司 |
代理人 |
杨松龄 |
| 主权项 |
|
| 地址 |
日本爱知县 |
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