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发明名称
Perfectionnements apportés aux réseaux optiques applicables notamment à la photographie, la cinématographie, la télévision, etc.
摘要
申请公布号
FR839046(A)
申请公布日期
1939.03.22
申请号
FRD839046
申请日期
1937.12.01
申请人
LA RELIEPHOGRAPHIE
发明人
分类号
G03F5/08
主分类号
G03F5/08
代理机构
代理人
主权项
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