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经营范围
发明名称
Mine support load spreader
摘要
申请公布号
ZA9304058(B)
申请公布日期
1994.01.07
申请号
ZA19930004058
申请日期
1993.06.09
申请人
C. W. LEWIS MINING SUPPLIES (WELKOM) (PROPRIETARY) LIMITED
发明人
MYNHARDT COETZER
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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