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发明名称
Record card controlled printing mechanisms
摘要
申请公布号
US2837023(A)
申请公布日期
1958.06.03
申请号
US19550550128
申请日期
1955.11.30
申请人
THE BRITISH TABULATING MACHINE COMPANY LIMITED
发明人
ASH DENIS JOHN;DAVIS ROGER ARTHUR
分类号
主分类号
代理机构
代理人
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