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发明名称
Calculating machine
摘要
申请公布号
US2148760(A)
申请公布日期
1939.02.28
申请号
US19320619645
申请日期
1932.06.28
申请人
MARCHANT CALCULATING MACHINE COMPANY
发明人
LERCH GUSTAV
分类号
G06C21/04
主分类号
G06C21/04
代理机构
代理人
主权项
地址
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