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发明名称
Phase difference indicator
摘要
申请公布号
US2217477(A)
申请公布日期
1940.10.08
申请号
US19390280684
申请日期
1939.06.23
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
GULLIKSEN FINN H.
分类号
G01R25/00
主分类号
G01R25/00
代理机构
代理人
主权项
地址
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