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经营范围
发明名称
A drawing device or instrument
摘要
申请公布号
GB658358(A)
申请公布日期
1951.10.10
申请号
GB19490013094
申请日期
1949.05.17
申请人
FRANZ BERGER
发明人
分类号
B43L13/14
主分类号
B43L13/14
代理机构
代理人
主权项
地址
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