Improvements in or relating to elements faced with superhard materials,申请号GB19940012779-传众专利搜索

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发明名称	Improvements in or relating to elements faced with superhard materials
摘要
申请公布号	GB9412779(D0)	申请公布日期	1994.08.17
申请号	GB19940012779	申请日期	1994.06.24
申请人	CAMCO DRILLING GROUP LIMITED	发明人
分类号	E21B10/56;E21B10/573	主分类号	E21B10/56
代理机构		代理人
主权项
地址

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