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发明名称
Système abréviatif avec méthode d'enseignement basés sur des procédés graphiques nouveaux réalisant des résultats inédits par une économie considérable de temps d'étude, de travail pratique et de papier
摘要
申请公布号
FR890549(A)
申请公布日期
1944.02.10
申请号
FRD890549
申请日期
1942.02.26
申请人
发明人
BRISCADIEU GASTON-PAUL-JEAN-MAR
分类号
G09B11/08
主分类号
G09B11/08
代理机构
代理人
主权项
地址
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