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发明名称
DEVICE FOR DUPLICATING MAGNETIC RECORDINGS BY A RECORDING PROCESS
摘要
申请公布号
CA489215(A)
申请公布日期
1952.12.30
申请号
CAD489215
申请日期
申请人
THE BRUSH DEVELOPMENT COMPANY
发明人
SEMI JOSEPH BEGUN
分类号
主分类号
代理机构
代理人
主权项
地址
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