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发明名称
Diaphragm and coil support
摘要
申请公布号
US1906066(A)
申请公布日期
1933.04.25
申请号
US19300473266
申请日期
1930.08.05
申请人
RADIO CORPORATION OF AMERICA
发明人
HOLST GILLES;SHEPHERD RICHARD;LIS PIETER HENDRIK ABRAHAM VAN
分类号
H04R9/04
主分类号
H04R9/04
代理机构
代理人
主权项
地址
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