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发明名称
Perfectionnements aux dispositifs de contrôle électrique d'occupation de voie ferrée
摘要
申请公布号
FR1185636(A)
申请公布日期
1959.08.03
申请号
FRD1185636
申请日期
1957.10.31
申请人
SOCIETE D'ELECTRICITE MORS
发明人
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
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