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发明名称
Valve de chambre à air en deux pièces
摘要
申请公布号
FR708490(A)
申请公布日期
1931.07.24
申请号
FRD708490
申请日期
1930.11.28
申请人
EDOUARD DUBIED ET COMPAGNIE
发明人
分类号
F16K15/20
主分类号
F16K15/20
代理机构
代理人
主权项
地址
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