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发明名称
Electrical measuring instrument
摘要
申请公布号
US2872643(A)
申请公布日期
1959.02.03
申请号
US19560582991
申请日期
1956.05.07
申请人
CROSBY BROADCASTING CORPORATION
发明人
ROCKWELL RONALD J.
分类号
G01R19/22
主分类号
G01R19/22
代理机构
代理人
主权项
地址
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