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发明名称
Lapel microphone
摘要
申请公布号
US2085184(A)
申请公布日期
1937.06.29
申请号
US19340723230
申请日期
1934.04.30
申请人
RADIO CORPORATION OF AMERICA
发明人
CARLISLE RICHARD W.
分类号
H04R1/40
主分类号
H04R1/40
代理机构
代理人
主权项
地址
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