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发明名称
Ergonometric stethoscope chestpiece
摘要
申请公布号
USD337381(S1)
申请公布日期
1993.07.13
申请号
US07/658353
申请日期
1991.02.20
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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