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发明名称
Fermeture et ouverture automatiques de fenêtre de magasins interchangeables pour appareil photographique
摘要
申请公布号
FR1287980(A)
申请公布日期
1962.03.16
申请号
FR19613401664
申请日期
1961.04.26
申请人
发明人
BIARD LEON MARCEL
分类号
G03B19/04
主分类号
G03B19/04
代理机构
代理人
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