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发明名称
Check circuit for optical reader employing threshold amplifier
摘要
申请公布号
US3321637(A)
申请公布日期
1967.05.23
申请号
US19650479207
申请日期
1965.08.12
申请人
RADIO CORPORATION OF AMERICA
发明人
BELTZ JOHN P.;DITKOFSKY HARRY
分类号
G06K7/10
主分类号
G06K7/10
代理机构
代理人
主权项
地址
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