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发明名称
Dispositif permettant d'utiliser les règles graduées des appareils à dessiner, pour faire les traits d'encre à l'aide du tire-ligne
摘要
申请公布号
FR1014569(A)
申请公布日期
1952.08.19
申请号
FRD1014569
申请日期
1947.09.09
申请人
发明人
ROTHSCHILD JEAN
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
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