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发明名称
BACKDRAFT DAMPER
摘要
申请公布号
GB1501496(A)
申请公布日期
1978.02.15
申请号
GB19750023805
申请日期
1975.06.02
申请人
MCCABE F
发明人
分类号
F16K1/18;F16K1/22;F24F13/14;F24F13/15;(IPC1-7):F24F13/14;E05D1/04;E05D1/06
主分类号
F16K1/18
代理机构
代理人
主权项
地址
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