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经营范围
发明名称
AN EXTRACTOR UNIT
摘要
申请公布号
GB9201303(D0)
申请公布日期
1992.03.11
申请号
GB19920001303
申请日期
1992.01.22
申请人
CHANG HSING WEN
发明人
分类号
F04D25/16;F04D29/62;F04D29/70
主分类号
F04D25/16
代理机构
代理人
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地址
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