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发明名称
Système pour influencer les trains sur les voies de chemins de fer
摘要
申请公布号
FR36684(E)
申请公布日期
1930.07.19
申请号
FRD36684
申请日期
1929.04.18
申请人
SOCIETE SIEMENS ET HALSKE AKTIENGESELLSCHAFT
发明人
分类号
B61L3/12
主分类号
B61L3/12
代理机构
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