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发明名称
笔(YFA8480)
摘要
申请公布号
CN3660475D
申请公布日期
2007.06.20
申请号
CN200630114274.X
申请日期
2006.08.03
申请人
杜宝琛
发明人
杜宝琛
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47号桐庐云山制笔有限公司
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