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发明名称
Signaling circuit
摘要
申请公布号
US2192715(A)
申请公布日期
1940.03.05
申请号
US19360098266
申请日期
1936.08.28
申请人
RADIO CORPORATION OF AMERICA
发明人
PETERSON HAROLD OLAF;KATZIN MARTIN
分类号
H03D1/16;H03D7/10
主分类号
H03D1/16
代理机构
代理人
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地址
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