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发明名称
Improvements in or relating to calculating or accounting or tabulating machines
摘要
申请公布号
GB388413(A)
申请公布日期
1933.02.27
申请号
GB19310018349
申请日期
1931.06.25
申请人
FRANCIS GUY SYDENHAM ENGLISH
发明人
分类号
主分类号
代理机构
代理人
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