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经营范围
发明名称
HIGHWAY CROSSING WITH INSULATED TRACK SECTION AT CROSSING
摘要
申请公布号
CA599316(A)
申请公布日期
1960.06.07
申请号
CAD599316
申请日期
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
ADRIAN J. FODGE
分类号
主分类号
代理机构
代理人
主权项
地址
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