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发明名称
UEberwachung auf Erdschluss in Gleichstromstellwerken
摘要
申请公布号
DE585522(C)
申请公布日期
1933.10.04
申请号
DENDATO019768D
申请日期
申请人
ORENSTEIN & KOPPEL AKT.-GES.
发明人
分类号
B61L7/06
主分类号
B61L7/06
代理机构
代理人
主权项
地址
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