METHOD OF AND ANCHOR FOR BOLTING TOGETHER STRATA OF MINE WORKING FLOOR,申请号PL19970320570-传众专利搜索

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发明名称	METHOD OF AND ANCHOR FOR BOLTING TOGETHER STRATA OF MINE WORKING FLOOR
摘要
申请公布号	PL320570(A1)	申请公布日期	1998.12.21
申请号	PL19970320570	申请日期	1997.06.13
申请人	BARECKI ZBIGNIEW	发明人	BARECKI ZBIGNIEW
分类号	E21D20/00;E21D21/00;(IPC1-7):E21D20/00	主分类号	E21D20/00
代理机构		代理人
主权项
地址

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