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发明名称
SPEAKER
摘要
PURPOSE:To improve characteristics of a flat-type speaker including a squareshaped diaphragm, to a remarkable extent, by establishing a special relationship between the size of said diaphragm and diameter of diaphragm driving voice coil.
申请公布号
JPS5369628(A)
申请公布日期
1978.06.21
申请号
JP19760145115
申请日期
1976.12.02
申请人
SONY CORP
发明人
MATSUDA JIYUN;NISHIMURA MASAAKI
分类号
H04R9/04;H04R7/04;H04R9/06
主分类号
H04R9/04
代理机构
代理人
主权项
地址
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