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经营范围
发明名称
LONG WALL MINING SEQUENCE
摘要
申请公布号
AU8866082(A)
申请公布日期
1983.03.31
申请号
AU19820088660
申请日期
1981.09.24
申请人
TAIHEIYO ENGINEERING (AUST.) PTY. LTD.
发明人
SHIGEO NAKAJIMA
分类号
E21C27/02;E21C41/16;E21D23/00;E21D23/14
主分类号
E21C27/02
代理机构
代理人
主权项
地址
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