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经营范围
发明名称
EAR PLUGS
摘要
申请公布号
GB8507608(D0)
申请公布日期
1985.05.01
申请号
GB19850007608
申请日期
1985.03.23
申请人
ANTI-NOISE LTD
发明人
分类号
A61F11/08
主分类号
A61F11/08
代理机构
代理人
主权项
地址
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