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发明名称
Coded railway signaling apparatus
摘要
申请公布号
US2357235(A)
申请公布日期
1944.08.29
申请号
US19430516363
申请日期
1943.12.31
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
JEROME ARTHUR L.
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
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