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发明名称
Railway signaling system
摘要
申请公布号
US2884517(A)
申请公布日期
1959.04.28
申请号
US19570692928
申请日期
1957.10.28
申请人
WESTINGHOUSE AIR BRAKE COMPANY
发明人
HUFFMAN DONALD D.;DWYER EDD C.
分类号
B61L1/18
主分类号
B61L1/18
代理机构
代理人
主权项
地址
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