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发明名称
Gehoorbeschermende oordop.
摘要
申请公布号
NL192601(C)
申请公布日期
1997.11.04
申请号
NL19900001448
申请日期
1990.06.25
申请人
HUBERTUS ADRIANUS DE WAAL
发明人
分类号
A61F11/08;(IPC1-7):A61F11/08
主分类号
A61F11/08
代理机构
代理人
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地址
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