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发明名称
Appareil pour l'abatage et le transport de charbons et minéraux analogues
摘要
申请公布号
FR902224(A)
申请公布日期
1945.08.22
申请号
FRD902224
申请日期
1944.02.26
申请人
FRIED. KRUPP
发明人
分类号
E21C27/18
主分类号
E21C27/18
代理机构
代理人
主权项
地址
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