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发明名称
Dispositif automatique permettant à plusieurs personnes en même temps de regarder des dioramas naturels et en relief grandeur nature
摘要
申请公布号
FR818513(A)
申请公布日期
1937.09.28
申请号
FRD818513
申请日期
1936.12.07
申请人
发明人
LANGLOIS ROBERT;TEWE FRANCOIS
分类号
A63J13/00
主分类号
A63J13/00
代理机构
代理人
主权项
地址
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