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发明名称
Dispositif de changement et de signal à contrôle permanent
摘要
申请公布号
FR729894(A)
申请公布日期
1932.08.02
申请号
FRD729894
申请日期
1932.01.18
申请人
VEREINIGTE EISENBAHN-SIGNALWERKE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
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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