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发明名称
Tonaufzeichnungsverfahren
摘要
申请公布号
DE839562(C)
申请公布日期
1952.05.23
申请号
DE1950R003083
申请日期
1950.07.15
申请人
RADEMAKER HANS DR.
发明人
RADEMAKER HANS DR.
分类号
G11B11/00
主分类号
G11B11/00
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