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发明名称
Speaker
摘要
A speaker comprises at least one long round shape resonance tube, in which comprises at least one speaker with at least one signal line disposed at one end of the resonance tube.
申请公布号
US2005180589(A1)
申请公布日期
2005.08.18
申请号
US20050033397
申请日期
2005.01.12
申请人
LIU NIEN-TU
发明人
LIU NIEN-TU
分类号
H04R5/02;(IPC1-7):H04R1/02;H04R1/20
主分类号
H04R5/02
代理机构
代理人
主权项
地址
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