Removable well packer,申请号US19410407429-传众专利搜索

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发明名称	Removable well packer
摘要
申请公布号	US2370832(A)	申请公布日期	1945.03.06
申请号	US19410407429	申请日期	1941.08.19
申请人	BAKER OIL TOOLS, INC.	发明人	BAKER REUBEN C.
分类号	E21B33/127;E21B33/1295	主分类号	E21B33/127
代理机构		代理人
主权项
地址

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