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发明名称
Calculating machine
摘要
申请公布号
US2294948(A)
申请公布日期
1942.09.08
申请号
US19400332221
申请日期
1940.04.29
申请人
MARCHANT CALCULATING MACHINE COMPANY
发明人
AVERY HAROLD T.
分类号
G06C23/02
主分类号
G06C23/02
代理机构
代理人
主权项
地址
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