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发明名称
Appareil de signalisation pour chemin de fer
摘要
申请公布号
FR789872(A)
申请公布日期
1935.11.07
申请号
FRD789872
申请日期
1935.05.09
申请人
TYER & COMPANY LIMITED
发明人
BROOKER AMOS WOODESON
分类号
B61L3/04
主分类号
B61L3/04
代理机构
代理人
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地址
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