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发明名称
MANUFACTURE OF DIAPHRAGM FOR LOUDSPEAKER
摘要
申请公布号
JPH03209999(A)
申请公布日期
1991.09.12
申请号
JP19900004117
申请日期
1990.01.11
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
KOIZUMI NOBORU
分类号
H04R7/02;H04R31/00
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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