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经营范围
发明名称
Huelle fuer Rechenstaebe
摘要
申请公布号
DE831613(C)
申请公布日期
1952.02.14
申请号
DE1950F001634
申请日期
1950.06.07
申请人
FA. A.W. FABER-CASTELL
发明人
BUELOW WILLY
分类号
G06G1/04
主分类号
G06G1/04
代理机构
代理人
主权项
地址
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