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经营范围
发明名称
Dispositif de perfectionnement des obturateurs de fluides
摘要
申请公布号
FR77457(E)
申请公布日期
1962.03.09
申请号
FR19591800679
申请日期
1959.10.26
申请人
发明人
LEFEBVRE ALBERT
分类号
F16K3/314
主分类号
F16K3/314
代理机构
代理人
主权项
地址
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