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经营范围
发明名称
Obturateur à ouverture concentrique progressive
摘要
申请公布号
FR1296609(A)
申请公布日期
1962.06.22
申请号
FR19610858231
申请日期
1961.04.10
申请人
发明人
WERNER HENRY JEAN
分类号
G03B9/08
主分类号
G03B9/08
代理机构
代理人
主权项
地址
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