(B1) ;MINE ROOF SUPPORT,申请号PL19800222508-传众专利搜索

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发明名称	(B1) ;MINE ROOF SUPPORT
摘要
申请公布号	PL222508(A1)	申请公布日期	1981.09.18
申请号	PL19800222508	申请日期	1980.03.05
申请人	CT KT MASZYN GORNICZYCH KOMAG	发明人	NATKANIEC BENEDYKT;ZYCH HENRYK;PRETOR WINCENTY;DREWNIAK ADOLF;GALASKA TEODOR
分类号	E21D;E21D23/06;(IPC1-7):E21D/	主分类号	E21D
代理机构		代理人
主权项
地址

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