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发明名称
Stethoskop
摘要
申请公布号
DE544819(C)
申请公布日期
1932.02.22
申请号
DED544819D
申请日期
1930.05.09
申请人
DR. HEINRICH HARDT
发明人
分类号
A61B7/02
主分类号
A61B7/02
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代理人
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