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经营范围
发明名称
Structure Smoke Exhauster
摘要
申请公布号
CA2084485(A1)
申请公布日期
1994.06.04
申请号
CA19922084485
申请日期
1992.12.03
申请人
CHANG, HSING-WEN
发明人
CHANG, HSING-WEN
分类号
F04D25/16;F04D29/62;F04D29/70;(IPC1-7):B08B15/02
主分类号
F04D25/16
代理机构
代理人
主权项
地址
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