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发明名称
ELECTRONIC CONTROL AND SURVEILLANCE SYSTEM FOR RAILWAY TRAINS
摘要
申请公布号
CA854858(A)
申请公布日期
1970.10.27
申请号
CAD854858
申请日期
申请人
DRESSER INDUSTRIES
发明人
JOHN T. BEYER
分类号
主分类号
代理机构
代理人
主权项
地址
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