ROOF BOLT FOR MINE WORKINGS,申请号SU19884603838-传众专利搜索

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发明名称	ROOF BOLT FOR MINE WORKINGS
摘要
申请公布号	SU1603016(A2)	申请公布日期	1990.10.30
申请号	SU19884603838	申请日期	1988.11.09
申请人	TREST "ORGTEKHSHAKHTOSTROJ" MINTSVETMETA SSSR	发明人	PETUKHOV SERGEJ M,SU;STEPANOV ANDREJ I,SU;ZAVERTKIN VIKTOR S,SU
分类号	E21D21/00	主分类号	E21D21/00
代理机构		代理人
主权项
地址

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