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经营范围
发明名称
Electronic squaring circuit
摘要
申请公布号
US2887576(A)
申请公布日期
1959.05.19
申请号
US19540468175
申请日期
1954.11.10
申请人
HENNING HARMUTH
发明人
HARMUTH HENNING
分类号
G06G7/20
主分类号
G06G7/20
代理机构
代理人
主权项
地址
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