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发明名称
Fail-safe protection for code communication control systems
摘要
申请公布号
US2900498(A)
申请公布日期
1959.08.18
申请号
US19550525898
申请日期
1955.08.02
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
HAILES WILLIAM D.
分类号
B61L7/08
主分类号
B61L7/08
代理机构
代理人
主权项
地址
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