Non-rotating cement wiper plugs,申请号GB20050011633-传众专利搜索

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发明名称	Non-rotating cement wiper plugs
摘要
申请公布号	GB0511633(D0)	申请公布日期	2005.07.13
申请号	GB20050011633	申请日期	2003.12.02
申请人	MIKOLAJCZYK, RAYMOND F	发明人
分类号	E21B33/08;E21B33/16	主分类号	E21B33/08
代理机构		代理人
主权项
地址

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