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发明名称
A noise filter and an ear protector
摘要
申请公布号
IL128208(D0)
申请公布日期
1999.11.30
申请号
IL19990128208
申请日期
1999.01.24
申请人
EALLAN HIRSHFELD
发明人
分类号
A61F;(IPC1-7):A61F
主分类号
A61F
代理机构
代理人
主权项
地址
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