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发明名称
Testing circuit
摘要
申请公布号
US2307319(A)
申请公布日期
1943.01.05
申请号
US19410422067
申请日期
1941.12.08
申请人
CHICAGO TRANSFORMER CORPORATION
发明人
KOEHLER GLENN
分类号
H04B1/60
主分类号
H04B1/60
代理机构
代理人
主权项
地址
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