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发明名称
Magnetic recorder
摘要
申请公布号
US3050225(A)
申请公布日期
1962.08.21
申请号
US19580713942
申请日期
1958.02.07
申请人
CHARLES ULMAN
发明人
ULMAN CHARLES
分类号
G11B15/16;G11B15/22;G11B15/24;G11B15/44;G11B15/50;G11B15/62
主分类号
G11B15/16
代理机构
代理人
主权项
地址
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