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发明名称
Magnetic recording device
摘要
申请公布号
US2920146(A)
申请公布日期
1960.01.05
申请号
US19550530978
申请日期
1955.08.29
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
GRIFT WOUTER;ROULET JEAN LOUIS
分类号
G11B5/024;G11B5/03;H04B1/20
主分类号
G11B5/024
代理机构
代理人
主权项
地址
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