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发明名称
双向喇叭
摘要
申请公布号
CN3072426D
申请公布日期
1998.01.14
申请号
CN97309465.6
申请日期
1997.03.14
申请人
李安培
发明人
李安培
分类号
14-01-L0220
主分类号
14-01-L0220
代理机构
广东专利事务所
代理人
石泽智
主权项
地址
528415广东省中山市小榄镇大涌边路二巷9号
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