| 发明名称 |
三五珠双色(形)算盘 |
| 摘要 |
省略其它视图。 |
| 申请公布号 |
CN3015526S |
申请公布日期 |
1992.10.07 |
| 申请号 |
CN92300274.X |
申请日期 |
1992.01.22 |
| 申请人 |
张洪明 |
发明人 |
张洪明 |
| 分类号 |
19-99 |
主分类号 |
19-99 |
| 代理机构 |
唐山专利事务所 |
代理人 |
王永红 |
| 主权项 |
|
| 地址 |
063000河北省唐山市路北区西北井楼8-3-1 |
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