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发明名称
Hearing protection apparatus
摘要
申请公布号
GB201006282(D0)
申请公布日期
2010.06.02
申请号
GB20100006282
申请日期
2010.04.15
申请人
DB-HI LTD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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