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发明名称
Multiplying machine
摘要
申请公布号
US2174690(A)
申请公布日期
1939.10.03
申请号
US19350054019
申请日期
1935.12.12
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
CUNNINGHAM JAMES M.
分类号
G06F7/46
主分类号
G06F7/46
代理机构
代理人
主权项
地址
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