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发明名称
LAUTSPRECHER
摘要
申请公布号
AT361999(B)
申请公布日期
1981.04.10
申请号
AT19770007586
申请日期
1977.10.24
申请人
HEIL OSKAR
发明人
HEIL OSKAR
分类号
H04R7/02;H04R7/00;H04R9/06;(IPC1-7):H04R7/04;H04R7/14
主分类号
H04R7/02
代理机构
代理人
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地址
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