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发明名称
Dual channel magnetic recorder and method
摘要
申请公布号
US2532917(A)
申请公布日期
1950.12.05
申请号
US19460704036
申请日期
1946.10.18
申请人
THE INDIANA STEEL PRODUCTS COMPANY
发明人
HOWELL HUGH A.
分类号
G11B5/03
主分类号
G11B5/03
代理机构
代理人
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地址
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