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经营范围
发明名称
(A) ;MOUNTING DEVICE FOR CEILING SPEAKER
摘要
申请公布号
JPH089479(B2)
申请公布日期
1996.01.31
申请号
JP19900002681
申请日期
1990.01.09
申请人
发明人
分类号
B66F3/08;(IPC1-7):B66F3/08
主分类号
B66F3/08
代理机构
代理人
主权项
地址
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