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经营范围
发明名称
Improvements in power transmission devices
摘要
申请公布号
GB400751(A)
申请公布日期
1933.11.02
申请号
GB19320023961
申请日期
1932.08.26
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H04N1/36
主分类号
H04N1/36
代理机构
代理人
主权项
地址
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