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发明名称
Calculating machine
摘要
申请公布号
US2538826(A)
申请公布日期
1951.01.23
申请号
US19490081501
申请日期
1949.03.15
申请人
MARCHANT CALCULATING MACHINE COMPANY
发明人
AVERY HAROLD T.
分类号
主分类号
代理机构
代理人
主权项
地址
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