METHOD FOR SEALING MINE WORKINGS,申请号ZA19900007831-传众专利搜索

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发明名称	METHOD FOR SEALING MINE WORKINGS
摘要
申请公布号	ZA9007831(B)	申请公布日期	1991.07.31
申请号	ZA19900007831	申请日期	1990.10.01
申请人	FOSROC INTERNATIONAL LIMITED	发明人	ANTHONY CECIL PLAISTED;LEONARD GEORGE HICKAM
分类号	E21F	主分类号	E21F
代理机构		代理人
主权项
地址

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