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发明名称
Perfectionnements aux diaphragmes automatiques
摘要
申请公布号
FR1267225(A)
申请公布日期
1961.07.21
申请号
FR19600829287
申请日期
1960.06.07
申请人
发明人
BEAULIEU MARCEL
分类号
G03B7/085
主分类号
G03B7/085
代理机构
代理人
主权项
地址
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