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发明名称
STETHOSKOP
摘要
申请公布号
DE7633559(U1)
申请公布日期
1977.06.08
申请号
DE19760033559U
申请日期
1976.10.26
申请人
AVID CORP., EAST PROVIDENCE, R.I. (V.ST.A.)
发明人
分类号
H04R1/10;A61B7/02;(IPC1-7):G10K11/12
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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