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发明名称
Documents canevas, édités sur grandes feuilles, pour l'enseignoment
摘要
申请公布号
FR1484450(A)
申请公布日期
1967.06.09
申请号
FR19660066743
申请日期
1966.06.17
申请人
发明人
TRAVERS HENRI
分类号
G09B29/00
主分类号
G09B29/00
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代理人
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