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发明名称
Verfahren zum Herstellen eines fuer die magnetische Schallaufzeichnung geeigneten Schalltraegers
摘要
申请公布号
DE917875(C)
申请公布日期
1954.09.13
申请号
DE1950B002341
申请日期
1950.03.02
申请人
FARBENFABRIKEN BAYER AKTIENGESELLSCHAFT
发明人
MUELLER DR. RUDOLF
分类号
G11B5/633;G11B5/84
主分类号
G11B5/633
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代理人
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