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发明名称
MAGNETIC CORE MATERIAL
摘要
申请公布号
CA351702(A)
申请公布日期
1935.07.16
申请号
CAD351702
申请日期
申请人
JOHNSON LABORATORIES
发明人
WLADIMIR J. POLYDOROFF
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主分类号
代理机构
代理人
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