DUST-SUPPRESSING UNIT FOR ROCK DRILLS,申请号SU19884476663-传众专利搜索

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发明名称	DUST-SUPPRESSING UNIT FOR ROCK DRILLS
摘要
申请公布号	SU1645563(A1)	申请公布日期	1991.04.30
申请号	SU19884476663	申请日期	1988.08.23
申请人	NOVOSIBIRSKIJ I INZHENEROV ZHELEZNODOROZHNOGO TRANSPORTA	发明人	MELIDI GEORGIJ E,SU;SAVOJSKIJ YURIJ I,SU;BARSUKOV ALEKSANDR N,SU
分类号	E21B21/07;E21F5/20	主分类号	E21B21/07
代理机构		代理人
主权项
地址

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