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发明名称
DIAPHRAGM FOR SPEAKER
摘要
申请公布号
JPH0738993(A)
申请公布日期
1995.02.07
申请号
JP19930179004
申请日期
1993.07.20
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
HIRATA MASAKUNI
分类号
H04R7/02;H04R1/06;H04R9/02;H04R9/04;(IPC1-7):H04R9/04
主分类号
H04R7/02
代理机构
代理人
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地址
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