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发明名称
SOUND DIFFUSER FOR LOUDSPEAKER AND LOUDSPEAKER INCORPORATING SAME
摘要
申请公布号
US3557901(A)
申请公布日期
1971.01.26
申请号
USD3557901
申请日期
1969.09.09
申请人
RICHARD OWEN YOUNG
发明人
RICHARD OWEN YOUNG
分类号
H04R1/34;(IPC1-7):G10K13/00;H04R1/28
主分类号
H04R1/34
代理机构
代理人
主权项
地址
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