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发明名称
Magnetisches Schallaufnahme- und -wiedergabegerät
摘要
申请公布号
CH332190(A)
申请公布日期
1958.08.31
申请号
CHD332190
申请日期
1955.04.19
申请人
WALTER INSTRUMENTS LIMITED
发明人
JOHN MILTON,ARTHUR
分类号
G11B15/60
主分类号
G11B15/60
代理机构
代理人
主权项
地址
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