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发明名称
Abbaueinrichtung fuer Braunkohle
摘要
申请公布号
DE533119(C)
申请公布日期
1931.09.09
申请号
DED533119D
申请日期
1930.05.11
申请人
MITTELDEUTSCHE STAHLWERKE AKT.-GES.
发明人
ODENWALD KARL
分类号
E21C27/26
主分类号
E21C27/26
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代理人
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地址
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