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发明名称
Photo-radio system
摘要
申请公布号
US2237645(A)
申请公布日期
1941.04.08
申请号
US19380192732
申请日期
1938.02.26
申请人
RADIO CORPORATION OF AMERICA
发明人
WHITAKER JAMES N.
分类号
H03K7/00
主分类号
H03K7/00
代理机构
代理人
主权项
地址
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