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发明名称
Cartes d'enregistrement en matière fibreuse pour montage de diapositives de projection
摘要
申请公布号
FR1430078(A)
申请公布日期
1966.03.04
申请号
FR19630932519
申请日期
1963.04.24
申请人
LANGAN APERTURE CARDS, INC.
发明人
分类号
G03B21/64
主分类号
G03B21/64
代理机构
代理人
主权项
地址
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