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发明名称
Appareil pratique pour écrire et dessiner
摘要
申请公布号
FR930891(A)
申请公布日期
1948.02.06
申请号
FRD930891
申请日期
1946.07.20
申请人
发明人
MESTRES FRANCOIS;MESTRES ROGER
分类号
B43L5/02
主分类号
B43L5/02
代理机构
代理人
主权项
地址
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