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发明名称
Loudspeaker
摘要
申请公布号
US3180945(A)
申请公布日期
1965.04.27
申请号
US19610139920
申请日期
1961.09.22
申请人
WM. H. WELSH CO., INC.
发明人
SUZUKI TATSUO
分类号
H04R7/14;H04R9/06
主分类号
H04R7/14
代理机构
代理人
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