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经营范围
发明名称
Vanne perfectionnée
摘要
申请公布号
FR1256003(A)
申请公布日期
1961.03.17
申请号
FR19600817232
申请日期
1960.02.01
申请人
ELECTRICITE DE FRANCE
发明人
MARY FRANCIS
分类号
F16K7/10
主分类号
F16K7/10
代理机构
代理人
主权项
地址
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