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发明名称
Ear plug
摘要
申请公布号
GB2323295(A)
申请公布日期
1998.09.23
申请号
GB19970005833
申请日期
1997.03.20
申请人
EDWARD * O'CONNOR
发明人
EDWARD * O'CONNOR
分类号
A61F11/10;H04R1/10;(IPC1-7):A61F11/10
主分类号
A61F11/10
代理机构
代理人
主权项
地址
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