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发明名称
Doppeltes Herzstueck fuer Kreuzungsweichen und Kreuzungen
摘要
申请公布号
DE633422(C)
申请公布日期
1936.07.27
申请号
DENDATV028841D
申请日期
申请人
VEREINIGTE STAHLWERKE AKT.-GES.
发明人
分类号
E01B7/30
主分类号
E01B7/30
代理机构
代理人
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地址
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