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发明名称
Calculating instrument
摘要
申请公布号
US2238529(A)
申请公布日期
1941.04.15
申请号
US19390271380
申请日期
1939.05.02
申请人
WOLFGANG KUBLER HANS
发明人
KUBLER HANS WOLFGANG
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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