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发明名称
MAGNETIC HEAD FOR PERPENDICULAR RECORDING
摘要
申请公布号
CA515232(A)
申请公布日期
1955.08.02
申请号
CAD515232
申请日期
申请人
GENERAL ELECTRIC COMPANY
发明人
RAGNAR THORENSEN
分类号
主分类号
代理机构
代理人
主权项
地址
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