数字语音教学机,申请号CN03301009.9-传众专利搜索

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发明名称	数字语音教学机
摘要
申请公布号	CN3315457D	申请公布日期	2003.08.20
申请号	CN03301009.9	申请日期	2003.01.27
申请人	北京昆喜科技发展有限公司	发明人	孙皖
分类号	14-03	主分类号	14-03
代理机构	北京集佳专利商标事务所	代理人	姜燕
主权项
地址	100081北京市海淀区中关村南大街9号理工科技大厦1208

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