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发明名称
Control for coupling devices
摘要
申请公布号
US2015191(A)
申请公布日期
1935.09.24
申请号
US19310557312
申请日期
1931.08.15
申请人
RADIO CORPORATION OF AMERICA
发明人
PLANCK RUSSELL MERTES
分类号
H03J5/24
主分类号
H03J5/24
代理机构
代理人
主权项
地址
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