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发明名称
Electromagnetic recording arrangement
摘要
申请公布号
US2161273(A)
申请公布日期
1939.06.06
申请号
US19360070564
申请日期
1936.03.24
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
BEGUN SEMI
分类号
G11B15/34
主分类号
G11B15/34
代理机构
代理人
主权项
地址
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