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发明名称
SCHALLABSTRAHLENDES LAUTSPRECHERGEHAEUSE UND VERFAHREN ZUR RAUMUEBERTRAGUNG VON SCHALL
摘要
申请公布号
DE3048547(A1)
申请公布日期
1981.11.05
申请号
DE19803048547
申请日期
1980.12.22
申请人
CLEMENTS,PHILIP RAY
发明人
RAY CLEMENTS,PHILIP
分类号
H04R1/02;H04R1/28;(IPC1-7):H04R1/28
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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