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发明名称
SPEAKER DIAPHRAGM
摘要
申请公布号
JPH04367197(A)
申请公布日期
1992.12.18
申请号
JP19910168827
申请日期
1991.06.13
申请人
PIONEER ELECTRON CORP;PIONEER CONE CORP
发明人
TAKAHASHI MASANORI
分类号
H04R7/02
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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