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发明名称
SPEAKER DIAPHRAGM
摘要
申请公布号
JPH02206999(A)
申请公布日期
1990.08.16
申请号
JP19890027782
申请日期
1989.02.06
申请人
SHOWA DENKO KK
发明人
TAKEMURA KENJI;WATANABE MASANORI;NORIMOTO TOSHIO
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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