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经营范围
发明名称
RAILWAY TRAFFIC CONTROL.
摘要
申请公布号
IE13810(L)
申请公布日期
1935.11.09
申请号
IED13810
申请日期
1935.04.24
申请人
WALTER SYDNEY ROBERTS;JOSEPH HALLAM BURTON;THE RAILWAY SIGNAL CO. LTD.
发明人
分类号
B61L;(IPC1-7):B61L
主分类号
B61L
代理机构
代理人
主权项
地址
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