BORE-HOLE MOUTH LOCK,申请号SU19904832754-传众专利搜索

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发明名称	BORE-HOLE MOUTH LOCK
摘要
申请公布号	RU1835456(C)	申请公布日期	1993.08.23
申请号	SU19904832754	申请日期	1990.04.09
申请人	OSTROVSKIJ ALEKSANDR B;SOLOVEV IVAN YA;FEDOROV YURIJ S	发明人	OSTROVSKIJ ALEKSANDR B;SOLOVEV IVAN YA;FEDOROV YURIJ S
分类号	E21B33/03	主分类号	E21B33/03
代理机构		代理人
主权项
地址

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