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发明名称
Calculating device
摘要
申请公布号
GB1029281(A)
申请公布日期
1966.05.11
申请号
GB19620005016
申请日期
1962.02.09
申请人
DONALD FREDERICK MACKAY
发明人
分类号
G06G1/00;G06G1/08
主分类号
G06G1/00
代理机构
代理人
主权项
地址
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