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发明名称
Railway switch assemblies
摘要
申请公布号
US2903972(A)
申请公布日期
1959.09.15
申请号
US19560569855
申请日期
1956.03.06
申请人
ALWEG-FORSCHUNG, GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
SCHUTZE GEORGE H.
分类号
E01B25/12
主分类号
E01B25/12
代理机构
代理人
主权项
地址
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