APPARATUS FOR CIRCULATING DRILLING FLUID IN ROTARY DRILL,申请号CAD551946-传众专利搜索

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发明名称	APPARATUS FOR CIRCULATING DRILLING FLUID IN ROTARY DRILL
摘要
申请公布号	CA551946(A)	申请公布日期	1958.01.21
申请号	CAD551946	申请日期
申请人	GEORGE E. FAILING COMPANY	发明人	VIRGIL C. MICKLE
分类号		主分类号
代理机构		代理人
主权项
地址

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