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经营范围
发明名称
DIAPHRAGM FOR SPEAKER
摘要
申请公布号
JPH03173299(A)
申请公布日期
1991.07.26
申请号
JP19890313595
申请日期
1989.12.01
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
SATO HITOSHI
分类号
H04R7/02;H04R7/18
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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