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经营范围
发明名称
Counting circuit
摘要
申请公布号
US2934750(A)
申请公布日期
1960.04.26
申请号
US19580710379
申请日期
1958.01.21
申请人
SCHAEFER DAVID H
发明人
SCHAEFER DAVID H.
分类号
H03K25/00
主分类号
H03K25/00
代理机构
代理人
主权项
地址
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