VALVE ASSEMBLY FOR INFLATABLE PACKER,申请号EP19860306873-传众专利搜索

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发明名称	VALVE ASSEMBLY FOR INFLATABLE PACKER
摘要
申请公布号	EP0214851(B1)	申请公布日期	1990.10.10
申请号	EP19860306873	申请日期	1986.09.05
申请人	WEATHERFORD/LAMB, INC.	发明人	STRINGFELLOW, WILLIAM DOYLE
分类号	E21B33/127	主分类号	E21B33/127
代理机构		代理人
主权项
地址

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