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发明名称
Perfectionnements apportés aux vannes du type dit papillon
摘要
申请公布号
FR1255002(A)
申请公布日期
1961.03.03
申请号
FR19600816037
申请日期
1960.01.19
申请人
发明人
LAZARETH CHARLES
分类号
F16K1/226
主分类号
F16K1/226
代理机构
代理人
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