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发明名称
FLEXIBLE EARPHONE BANDS
摘要
申请公布号
GB8923186(D0)
申请公布日期
1989.11.29
申请号
GB19890023186
申请日期
1989.10.14
申请人
BATTEN, DAVID A
发明人
分类号
H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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