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发明名称
通风烟道
摘要
申请公布号
CN3110229D
申请公布日期
1999.05.12
申请号
CN98321543.X
申请日期
1998.05.16
申请人
李长忠
发明人
李长忠
分类号
25-02-C0324
主分类号
25-02-C0324
代理机构
代理人
主权项
地址
138001吉林省松原市宁江区金鸽建筑通风道厂李长忠
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