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经营范围
发明名称
Permanent middle ear vent tube and method of insertion
摘要
申请公布号
US5047053(A)
申请公布日期
1991.09.10
申请号
US19900485642
申请日期
1990.02.27
申请人
SMITH & NEPHEW RICHARDS INC.
发明人
JAHN, ANTHONY F.
分类号
A61F11/00
主分类号
A61F11/00
代理机构
代理人
主权项
地址
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