MEHTOD AND DEVICE FOR THE BACKFILLING OF ROADWAY SUPPORTS IN MINE AND TUNNNEL CONSTRUCTION WITH THE AID OF SUPPORT HOSES HAVING A HARDENING FILTER,申请号ZA19820002813-传众专利搜索

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发明名称	MEHTOD AND DEVICE FOR THE BACKFILLING OF ROADWAY SUPPORTS IN MINE AND TUNNNEL CONSTRUCTION WITH THE AID OF SUPPORT HOSES HAVING A HARDENING FILTER
摘要
申请公布号	ZA8202813(B)	申请公布日期	1983.06.29
申请号	ZA19820002813	申请日期	1982.04.26
申请人	GTG GESTEINS-UND TIEFBAU GMBH	发明人	DUERRFELD WERNER
分类号	E21D	主分类号	E21D
代理机构		代理人
主权项
地址

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