Seletor de furo de sondagem,申请号BR19940000466-传众专利搜索

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发明名称	Seletor de furo de sondagem
摘要
申请公布号	BR9400466(A)	申请公布日期	1994.09.27
申请号	BR19940000466	申请日期	1994.02.08
申请人	COOPER INDUSTRIES, INC.	发明人	EDWIN CARROLL TURNER
分类号	B65G53/56;E21B23/12;E21B33/038;E21B33/076;(IPC1-7):E21B43/013;E21B43/012	主分类号	B65G53/56
代理机构		代理人
主权项
地址

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