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发明名称
AN ANTI-NOISE EARPHONE DEVICE
摘要
申请公布号
HK1150937(A2)
申请公布日期
2012.01.13
申请号
HK20110110473
申请日期
2011.10.04
申请人
COBALT INDUSTRIAL COMPANY LIMITED
发明人
LIU KIN WAI KENNETH
分类号
H04R
主分类号
H04R
代理机构
代理人
主权项
地址
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