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经营范围
发明名称
Softwall mining method and device
摘要
申请公布号
AP9901679(D0)
申请公布日期
1999.12.31
申请号
AP19990001679
申请日期
1998.05.01
申请人
IMC-AGRICO COMPANY
发明人
分类号
E21C25/60;E21C41/16
主分类号
E21C25/60
代理机构
代理人
主权项
地址
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