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发明名称
Improved sensing device for punched record media
摘要
申请公布号
GB980723(A)
申请公布日期
1965.01.20
申请号
GB19630019414
申请日期
1963.05.16
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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