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发明名称
Vanne à étanchéité automatique par une matière plastique
摘要
申请公布号
FR1387424(A)
申请公布日期
1965.01.29
申请号
FR19640962055
申请日期
1964.01.30
申请人
发明人
VOLPIN ALEXANDER SAMUEL
分类号
F16K3/36
主分类号
F16K3/36
代理机构
代理人
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