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发明名称
Comparing system
摘要
申请公布号
US2844309(A)
申请公布日期
1958.07.22
申请号
US19520321697
申请日期
1952.11.20
申请人
RADIO CORPORATION OF AMERICA
发明人
AYRES WILLIAM R.
分类号
G06F7/02
主分类号
G06F7/02
代理机构
代理人
主权项
地址
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