助学仪,申请号CN200730129670.4-传众专利搜索

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发明名称	助学仪
摘要
申请公布号	CN300742682D	申请公布日期	2008.02.06
申请号	CN200730129670.4	申请日期	2007.03.20
申请人	孙五一	发明人	孙五一
分类号	24-02	主分类号	24-02
代理机构	哈尔滨市松花江专利商标事务所	代理人	韩末洙
主权项
地址	150090黑龙江省哈尔滨市南岗区开发区盟科时代小区F栋1单元401室

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