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发明名称
EAR TIPS HAVING A PLURALITY OF EAR CONTACTING SURFACES
摘要
申请公布号
EP0959773(A1)
申请公布日期
1999.12.01
申请号
EP19970922290
申请日期
1997.04.08
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
PACKARD, THOMAS, J.;ROSSINI, MARY, J.
分类号
A61B7/02;A61F11/08;H04R1/10;H04R25/00;(IPC1-7):A61B7/02
主分类号
A61B7/02
代理机构
代理人
主权项
地址
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