MULTIPLE PRODUCTION STRING APPARATUS,申请号CA20092689402-传众专利搜索

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发明名称	MULTIPLE PRODUCTION STRING APPARATUS
摘要
申请公布号	CA2689402(A1)	申请公布日期	2010.06.30
申请号	CA20092689402	申请日期	2009.12.30
申请人	SMITH INTERNATIONAL, INC.	发明人	INGRAHAM, DEREK
分类号	E21B17/00;E21B17/10	主分类号	E21B17/00
代理机构		代理人
主权项
地址

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