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发明名称
Perfectionnements aux systèmes de commande à distance
摘要
申请公布号
FR951053(A)
申请公布日期
1949.10.14
申请号
FRD951053
申请日期
1947.08.05
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
分类号
B61L7/08
主分类号
B61L7/08
代理机构
代理人
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