TOOL FOR DRILLING SOFT ROCK,申请号SU19853868142-传众专利搜索

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发明名称	TOOL FOR DRILLING SOFT ROCK
摘要
申请公布号	SU1331992(A1)	申请公布日期	1987.08.23
申请号	SU19853868142	申请日期	1985.03.18
申请人	SP K BYURO V PROMYSHLENNOGO OBEDINENIYA "SOYUZGEOTEKHNIKA"	发明人	MELNIK EDUARD D,SU;PESHKOV ANATOLIJ N,SU;SMIRNOV OLEG V,SU;KUZNETSOV ALEKSANDR V,SU
分类号	E21B21/00	主分类号	E21B21/00
代理机构		代理人
主权项
地址

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