Improved well tool hanger,申请号GB19590022567-传众专利搜索

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发明名称	Improved well tool hanger
摘要
申请公布号	GB851104(A)	申请公布日期	1960.10.12
申请号	GB19590022567	申请日期	1959.07.01
申请人	CAMCO, INCORPORATED	发明人
分类号	E21B23/02	主分类号	E21B23/02
代理机构		代理人
主权项
地址

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