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发明名称
Improved calculator
摘要
申请公布号
GB1085528(A)
申请公布日期
1967.10.04
申请号
GB19640032643
申请日期
1964.08.11
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
OWEN CHARLES EDWARD
分类号
G06F3/08;G06F7/49
主分类号
G06F3/08
代理机构
代理人
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