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经营范围
发明名称
Magnetic tape transducer
摘要
申请公布号
US3152225(A)
申请公布日期
1964.10.06
申请号
US19580741401
申请日期
1958.06.11
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
PETERS CHARLES J.
分类号
G11B5/127;G11B5/49;H04N5/782
主分类号
G11B5/127
代理机构
代理人
主权项
地址
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