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发明名称
ACOUSTIC DIAPHRAGM MEMBER
摘要
申请公布号
JPH01223896(A)
申请公布日期
1989.09.06
申请号
JP19880050417
申请日期
1988.03.03
申请人
PIONEER ELECTRON CORP;PIONEER CONE CORP
发明人
ITO MINORU
分类号
H04R7/02
主分类号
H04R7/02
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