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发明名称
ANORDNUNG ZUR VERBESSERUNG DER SPRACHUEBERTRAGUNG AUS EINER ATEMSCHUTZMASKE
摘要
申请公布号
DE3446771(A1)
申请公布日期
1985.07.04
申请号
DE19843446771
申请日期
1984.12.21
申请人
AKG AKUSTISCHE U. KINO-GERAETE GMBH
发明人
BOLNBERGER,REINHARD,ING.;FIDI,WERNER,DIPL.-ING.
分类号
H04R1/02;A62B18/08;H04R1/08;(IPC1-7):A62B18/08;H04R1/42
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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