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发明名称
VORRICHTUNG ZUM BELUEFTEN EINES GEHAEUSES MIT EINER NACH UNTEN GEOEFFNETEN LUFTHUTZE INSBESONDERE VON IN DER EISENBAHNSICHERUNGSTECHNIK VERWENDETEN SIGNALSCHALTEINRICHTUNGEN
摘要
申请公布号
DE7136220(U)
申请公布日期
1972.05.31
申请号
DE19710036220U
申请日期
1971.09.23
申请人
SIEMENS AG
发明人
分类号
主分类号
代理机构
代理人
主权项
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