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发明名称
笔芯(派克)
摘要
仰视图与俯视图相同,省略仰视图。
申请公布号
CN3457393D
申请公布日期
2005.06.29
申请号
CN200430105969.2
申请日期
2004.12.01
申请人
余维真
发明人
余维真
分类号
19-06
主分类号
19-06
代理机构
杭州天欣专利事务所
代理人
陈红
主权项
地址
311519 浙江省桐庐县分水镇玉泉路46—3
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