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发明名称
Relay system
摘要
申请公布号
US1749531(A)
申请公布日期
1930.03.04
申请号
US19250041172
申请日期
1925.07.02
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
GOLDSBOROUGH SHIRLEY L.
分类号
H02H3/40
主分类号
H02H3/40
代理机构
代理人
主权项
地址
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