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发明名称
Vanne-papillon perfectionnée
摘要
申请公布号
FR1064550(A)
申请公布日期
1954.05.14
申请号
FRD1064550
申请日期
1952.10.20
申请人
ATELIERS ET FONDERIES DE PARIS-OUEST
发明人
分类号
F16K1/226
主分类号
F16K1/226
代理机构
代理人
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