WELL PACKER APPARATUS AND WELL PACKING METHOD,申请号GB19770051892-传众专利搜索

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发明名称	WELL PACKER APPARATUS AND WELL PACKING METHOD
摘要
申请公布号	GB1596416(A)	申请公布日期	1981.08.26
申请号	GB19770051892	申请日期	1977.12.13
申请人	BROWN OIL TOOLS INC	发明人
分类号	E21B23/06;E21B33/129;(IPC1-7):E21B33/12;E21B33/12	主分类号	E21B23/06
代理机构		代理人
主权项
地址

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