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发明名称
Improvements in or relating to apparatus for use in manual accountancy
摘要
申请公布号
GB628973(A)
申请公布日期
1949.09.08
申请号
GB19460023888
申请日期
1946.08.12
申请人
REGINALD ARTHUR WILSON
发明人
分类号
B41L3/14
主分类号
B41L3/14
代理机构
代理人
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