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经营范围
发明名称
SPEAKER DEVICE
摘要
申请公布号
JPH03192999(A)
申请公布日期
1991.08.22
申请号
JP19890333312
申请日期
1989.12.22
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
TAKAHASHI TOSHIJI
分类号
H04R1/02;B60R11/02
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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