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发明名称
空心钻
摘要
申请公布号
CN3281868D
申请公布日期
2003.03.12
申请号
CN02315655.4
申请日期
2002.06.28
申请人
朱虎林
发明人
朱虎林
分类号
08-01
主分类号
08-01
代理机构
杭州求是专利事务所有限公司
代理人
韩介梅
主权项
地址
314301浙江省海盐县六里环北路33号
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