METHOD OF OPTIMIZATION OF ROCK DRILLING PROCESS,申请号SU19894695315-传众专利搜索

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发明名称	METHOD OF OPTIMIZATION OF ROCK DRILLING PROCESS
摘要
申请公布号	SU1645751(A1)	申请公布日期	1991.04.30
申请号	SU19894695315	申请日期	1989.05.23
申请人	SVERDLOVSKIJ GORNYJ I IM.V.V.VAKHRUSHEVA	发明人	KALYGIN EVGENIJ V,SU;BAGAUTINOV GABDRAUF A,SU
分类号	E21B45/00	主分类号	E21B45/00
代理机构		代理人
主权项
地址

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