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经营范围
发明名称
Headset noise exposure dosimeter.
摘要
申请公布号
HK1065589(A1)
申请公布日期
2005.07.22
申请号
HK20040108367
申请日期
2004.10.26
申请人
PLANTRONICS, INC.
发明人
BERNARDI, ROBERT, J.;EWER, PAUL, A.
分类号
G01H3/14;(IPC1-7):G01H
主分类号
G01H3/14
代理机构
代理人
主权项
地址
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