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经营范围
发明名称
Improvements in or relating to machines for verifying perforated record cards
摘要
申请公布号
GB430251(A)
申请公布日期
1935.06.17
申请号
GB19330035359
申请日期
1933.12.15
申请人
ARTHUR THOMAS
发明人
分类号
G06K5/00
主分类号
G06K5/00
代理机构
代理人
主权项
地址
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