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发明名称
VENTILATION UNITS
摘要
申请公布号
GB8701402(D0)
申请公布日期
1987.02.25
申请号
GB19870001402
申请日期
1987.01.22
申请人
GRADWOOD LTD
发明人
分类号
F24F7/02
主分类号
F24F7/02
代理机构
代理人
主权项
地址
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