Apparatus for protecting a crossing of a longwall working with a dog heading,申请号PL20020352261-传众专利搜索

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发明名称	Apparatus for protecting a crossing of a longwall working with a dog heading
摘要
申请公布号	PL196277(B1)	申请公布日期	2007.12.31
申请号	PL20020352261	申请日期	2002.02.15
申请人	KOMPANIA WEGLOWA SA	发明人	STACHURA JOZEF;WARDAS ALEKSANDER;KURPANIK MICHAL;DUBIEL GRZEGORZ;JURKOWSKI MARIAN;GRZENIK ZENON
分类号	E21D23/00;E21F13/08	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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