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经营范围
发明名称
Magnetic tape machine
摘要
申请公布号
US3074661(A)
申请公布日期
1963.01.22
申请号
US19570698118
申请日期
1957.11.22
申请人
AMPEX CORPORATION
发明人
BRUMBAUGH ROBERT M.;CHENEY WALTER J.
分类号
G06K13/22;G11B15/22;G11B15/29;G11B15/43;G11B15/58
主分类号
G06K13/22
代理机构
代理人
主权项
地址
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