Rohrhandhabungsvorrichtung fuer OElbohrtuerme od.dgl.,申请号DE19702040949-传众专利搜索

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发明名称	Rohrhandhabungsvorrichtung fuer OElbohrtuerme od.dgl.
摘要
申请公布号	DE2040949(A1)	申请公布日期	1971.02.25
申请号	DE19702040949	申请日期	1970.08.11
申请人	DRESSER INDUSTRIES INC.	发明人	A. MITCHELL,JOSEPH;D. DYER,NORMAN
分类号	E21B19/14	主分类号	E21B19/14
代理机构		代理人
主权项
地址

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