Improved means for handling pipe in wells,申请号GB19360002070-传众专利搜索

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发明名称	Improved means for handling pipe in wells
摘要
申请公布号	GB469327(A)	申请公布日期	1937.07.22
申请号	GB19360002070	申请日期	1936.01.22
申请人	BYRON JACKSON CO.	发明人
分类号	E21B19/06	主分类号	E21B19/06
代理机构		代理人
主权项
地址

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