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发明名称
UNDERFLOOR VENTILATORS
摘要
申请公布号
GB8613021(D0)
申请公布日期
1986.07.02
申请号
GB19860013021
申请日期
1986.05.29
申请人
KEY TERRAIN LTD
发明人
分类号
E02D31/06;E04B1/70;F24F7/04;F24F13/02;F24F13/08
主分类号
E02D31/06
代理机构
代理人
主权项
地址
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