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发明名称
Headset with adjustable earpiece
摘要
申请公布号
GB0103140(D0)
申请公布日期
2001.03.28
申请号
GB20010003140
申请日期
1999.09.24
申请人
HELLO DIRECT INC
发明人
分类号
H04M1/05;H04R1/10
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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