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发明名称
Circuits oscillants et installations de signalisation par voie ferrée utilisant lesdits circuits oscillants
摘要
申请公布号
FR72079(E)
申请公布日期
1960.03.21
申请号
FRD72079
申请日期
1957.06.28
申请人
COMPTEURS ET MOTEURS ASTER
发明人
分类号
B61L1/18;B61L23/16
主分类号
B61L1/18
代理机构
代理人
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地址
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