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发明名称
QUADRUPLE SOUND OUTPUT LOUDSPEAKER ENCLOSURE
摘要
申请公布号
US3517769(A)
申请公布日期
1970.06.30
申请号
USD3517769
申请日期
1969.03.26
申请人
PAUL DANIEL BROUSSARD
发明人
PAUL DANIEL BROUSSARD
分类号
H04R1/28;(IPC1-7):G10K13/00;H04R7/00
主分类号
H04R1/28
代理机构
代理人
主权项
地址
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