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经营范围
发明名称
Rueckschlagventil
摘要
申请公布号
DE501652(C)
申请公布日期
1930.07.05
申请号
DE1928A053421D
申请日期
1928.03.01
申请人
GEORG ANDERSEN
发明人
分类号
F16K15/06
主分类号
F16K15/06
代理机构
代理人
主权项
地址
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