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发明名称
Signaling system
摘要
申请公布号
US1768661(A)
申请公布日期
1930.07.01
申请号
US19280291019
申请日期
1928.07.07
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
BRINDLEY WILLIAM E.
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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