Convertible well packer and bridge plug,申请号GB19630012991-传众专利搜索

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发明名称	Convertible well packer and bridge plug
摘要
申请公布号	GB1003233(A)	申请公布日期	1965.09.02
申请号	GB19630012991	申请日期	1963.04.02
申请人	BAKER OIL TOOLS, INC.	发明人
分类号	E21B33/12;E21B33/129	主分类号	E21B33/12
代理机构		代理人
主权项
地址

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