METHOD OF SPLITTING A COAL BED OF LARGE DEPOSITION AREA FOR LONGWALL WORKING PURPOSES,申请号PL19970322696-传众专利搜索

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发明名称	METHOD OF SPLITTING A COAL BED OF LARGE DEPOSITION AREA FOR LONGWALL WORKING PURPOSES
摘要
申请公布号	PL322696(A1)	申请公布日期	1999.04.26
申请号	PL19970322696	申请日期	1997.10.16
申请人	RYBNICKA SP.WEGLOWA SA KOPALNIA WEGLA KAMIENNEGO JANKOWICE	发明人	KRYJ KRZYSZTOF;SZAFARCZYK JOZEF;SLIWA JAN;PROCHASEK ZBIGNIEW;NOWAKOWSKI ADAM;SPYRKA LESZEK;ZAWADZKI WIESLAW
分类号	E21C41/18;(IPC1-7):E21C41/18	主分类号	E21C41/18
代理机构		代理人
主权项
地址

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