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发明名称
Signaling system
摘要
申请公布号
US1877571(A)
申请公布日期
1932.09.13
申请号
US19280267585
申请日期
1928.04.05
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
FORBES HENRY C.
分类号
H04B5/00
主分类号
H04B5/00
代理机构
代理人
主权项
地址
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