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发明名称
BROKEN RAIL DETECTION SYSTEM
摘要
申请公布号
GB8914512(D0)
申请公布日期
1989.08.09
申请号
GB19890014512
申请日期
1989.06.23
申请人
GENERAL SIGNAL CORPORATION
发明人
分类号
B61L23/04
主分类号
B61L23/04
代理机构
代理人
主权项
地址
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