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发明名称
Sampling apparatus
摘要
申请公布号
US2824172(A)
申请公布日期
1958.02.18
申请号
US19500179197
申请日期
1950.08.14
申请人
RADIO CORPORATION OF AMERICA
发明人
CHERRY WILLIAM H.
分类号
H04J3/00;H04N11/12
主分类号
H04J3/00
代理机构
代理人
主权项
地址
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