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经营范围
发明名称
Perfectionnements aux appareils à dessiner
摘要
申请公布号
FR943003(A)
申请公布日期
1949.02.24
申请号
FRD943003
申请日期
1947.03.10
申请人
发明人
CALME JEAN;CALME CHRISTIAN
分类号
B43L13/06
主分类号
B43L13/06
代理机构
代理人
主权项
地址
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