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发明名称
Power level indicator
摘要
申请公布号
US2189660(A)
申请公布日期
1940.02.06
申请号
US19370135791
申请日期
1937.04.08
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
BOUDREAU ANTHONY P. J.
分类号
G01R21/02
主分类号
G01R21/02
代理机构
代理人
主权项
地址
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