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经营范围
发明名称
Air duct valve for shelter
摘要
申请公布号
US3139811(A)
申请公布日期
1964.07.07
申请号
US19610143804
申请日期
1961.10.09
申请人
EWERS & MIESNER HARTGUSSWERK UND MASCHINENFABRIK G. M. B. H.
发明人
SICKEL HELMUT;SCHIERSE PAUL;FIANKE GUNTER
分类号
A62B13/00;F16K17/00;F16K17/04
主分类号
A62B13/00
代理机构
代理人
主权项
地址
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