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发明名称
IMPROVEMENTS IN OR RELATING TO CALCULATING MACHINES
摘要
申请公布号
GB1293373(A)
申请公布日期
1972.10.18
申请号
GB19690026384
申请日期
1969.05.23
申请人
BELL PUNCH COMPANY LIMITED
发明人
JOHN GEORGE LLOYD
分类号
G06F15/02
主分类号
G06F15/02
代理机构
代理人
主权项
地址
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