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经营范围
发明名称
Frequency coincidence detector
摘要
申请公布号
US3012200(A)
申请公布日期
1961.12.05
申请号
US19570691040
申请日期
1957.10.18
申请人
HYMAN HURVITZ
发明人
HURVITZ HYMAN
分类号
G01R23/00
主分类号
G01R23/00
代理机构
代理人
主权项
地址
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