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发明名称
Buffer cover for preventing pain when using headphones
摘要
申请公布号
CZ20002108(A3)
申请公布日期
2000.11.15
申请号
CZ20000002108
申请日期
1998.12.05
申请人
BYUN KI-MAN
发明人
BYUN KI-MAN
分类号
H04R1/02;(IPC1-7):H04R1/02
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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