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发明名称	开塞钻
摘要
申请公布号	CN3316351D	申请公布日期	2003.08.27
申请号	CN02369487.4	申请日期	2002.12.02
申请人	罗容佳	发明人	罗容佳
分类号	07-06	主分类号	07-06
代理机构	中原信达知识产权代理有限责任公司	代理人	武玉琴;顾红霞
主权项
地址	香港新界

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