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发明名称
Improvements in or relating to machinery for sorting record cards
摘要
申请公布号
GB541092(A)
申请公布日期
1941.11.12
申请号
GB19400008403
申请日期
1940.05.09
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
主分类号
代理机构
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