DIAMOND DRILLING TOOL AND METHOD OF MAKING SAME,申请号SU19874263043-传众专利搜索

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发明名称	DIAMOND DRILLING TOOL AND METHOD OF MAKING SAME
摘要
申请公布号	SU1640339(A1)	申请公布日期	1991.04.07
申请号	SU19874263043	申请日期	1987.06.15
申请人	INST SVERKHTVERDYKH MAT	发明人	SKLYAROV EDUARD D,SU
分类号	E21B10/46	主分类号	E21B10/46
代理机构		代理人
主权项
地址

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