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发明名称
Calculating machine
摘要
申请公布号
US2139168(A)
申请公布日期
1938.12.06
申请号
US19370145719
申请日期
1937.06.01
申请人
BURROUGHS ADDING MACHINE COMPANY
发明人
MULLER ROBERT L.
分类号
B41J11/48
主分类号
B41J11/48
代理机构
代理人
主权项
地址
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