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经营范围
发明名称
Improvements in or relating to magnetic recording and/or reproduction apparatus
摘要
申请公布号
GB936940(A)
申请公布日期
1963.09.18
申请号
GB19610044525
申请日期
1961.12.12
申请人
AMPEX CORPORATION
发明人
JOHNSON KEITH DE OSMA
分类号
G11B15/43
主分类号
G11B15/43
代理机构
代理人
主权项
地址
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