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经营范围
发明名称
Magnetic reading/writing circuit and channel selector therefor
摘要
申请公布号
US3092817(A)
申请公布日期
1963.06.04
申请号
US19610094053
申请日期
1961.03.07
申请人
HRB-SINGER, INC.
发明人
DIAMANT HENRI B.
分类号
G11B15/12
主分类号
G11B15/12
代理机构
代理人
主权项
地址
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