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发明名称
Rechenvorrichtung nach dem nomographischen Prinzip, insbesondere zur Preisberechnunggewogener Mengen
摘要
申请公布号
DE509983(C)
申请公布日期
1930.10.15
申请号
DE1927H114310D
申请日期
1927.12.13
申请人
DIPL.-ING. ADOLF HOMMEL
发明人
分类号
G06G1/14
主分类号
G06G1/14
代理机构
代理人
主权项
地址
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