Underground mine support,申请号ZA19980001765-传众专利搜索

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发明名称	Underground mine support
摘要
申请公布号	ZA9801765(B)	申请公布日期	1998.09.03
申请号	ZA19980001765	申请日期	1998.03.03
申请人	CONCOR HOLDINGS (PROPRIETARY) LIMITED.	发明人	ANTHONY CLIVE VAN DER BERG
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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