BLAST-HOLE DRILLING DEVICE,申请号SU19802936577-传众专利搜索

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发明名称	BLAST-HOLE DRILLING DEVICE
摘要
申请公布号	SU899913(A1)	申请公布日期	1982.01.23
申请号	SU19802936577	申请日期	1980.04.16
申请人	VNII NERUDNYKH STROITELNYKH MATERIALOV GIDROMEKHANIZATSII	发明人	ZHIDKOV ANATOLIJ V,SU;BULAVTSEV VLADIMIR A,SU;KANYGIN ALEKSANDR S,SU
分类号	E21B15/00;(IPC1-7):E21C11/02	主分类号	E21B15/00
代理机构		代理人
主权项
地址

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