WEAR INDICATION APPARATUS AND METHOD,申请号CA20052566480-传众专利搜索

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发明名称	WEAR INDICATION APPARATUS AND METHOD
摘要
申请公布号	CA2566480(A1)	申请公布日期	2005.12.01
申请号	CA20052566480	申请日期	2005.05.09
申请人	BAKER HUGHES INCORPORATED	发明人	DAVIS, JOHN P.;LYNDE, GERALD D.
分类号	E21B12/02;E21B10/00	主分类号	E21B12/02
代理机构		代理人
主权项
地址

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