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发明名称
DIAPHRAGM FOR LOUDSPEAKER AND ITS MANUFACTURE AND MANUFACTURING DIE
摘要
申请公布号
JPH03239098(A)
申请公布日期
1991.10.24
申请号
JP19900035510
申请日期
1990.02.16
申请人
VICTOR CO OF JAPAN LTD
发明人
TAKAMURA SHOSAKU;NAKASO JIRO;TANAKA YOSHIYUKI
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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