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发明名称
EAR DEFENDERS
摘要
申请公布号
GB8310002(D0)
申请公布日期
1983.05.18
申请号
GB19830010002
申请日期
1983.04.13
申请人
MARCONI CO LTD
发明人
分类号
A61F11/14;(IPC1-7):A61F11/02
主分类号
A61F11/14
代理机构
代理人
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