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发明名称
DEVICE FOR PREPARING PUNCH CARDS
摘要
申请公布号
GB1356829(A)
申请公布日期
1974.06.19
申请号
GB19710048423
申请日期
1971.10.18
申请人
DECISION DATA COMPUTER CORPORATION
发明人
分类号
G06K1/04;(IPC1-7):G06K1/18
主分类号
G06K1/04
代理机构
代理人
主权项
地址
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