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发明名称
Schallplatte mit herausdrueckbarem Mittelstueck
摘要
申请公布号
DE1030576(B)
申请公布日期
1958.05.22
申请号
DE1953L017245
申请日期
1953.11.26
申请人
LICENTIA PATENT-VERWALTUNGS-G.M.B.H.
发明人
FLOETGEN DIPL.-ING. RUDOLF
分类号
G11B17/022
主分类号
G11B17/022
代理机构
代理人
主权项
地址
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