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发明名称
Magnetic recording or reproducing device
摘要
申请公布号
US2418543(A)
申请公布日期
1947.04.08
申请号
US19440528529
申请日期
1944.03.29
申请人
ARMOUR RESEARCH FOUNDATION
发明人
CAMRAS MARVIN
分类号
G11B5/00
主分类号
G11B5/00
代理机构
代理人
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