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经营范围
发明名称
DIAPHRAGM FOR LOUD SPEAKER
摘要
申请公布号
CA1029611(A)
申请公布日期
1978.04.18
申请号
CA19740215930
申请日期
1974.12.13
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人
TAKANO, KAZURO;HIRATA, MASAKUNI;KODERA, YASUO
分类号
H04R7/02;(IPC1-7):04R7/02
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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