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发明名称
Marginal checking apparatus
摘要
申请公布号
US3225176(A)
申请公布日期
1965.12.21
申请号
US19610159980
申请日期
1961.12.18
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
JONES JOHN C.
分类号
G06K7/01
主分类号
G06K7/01
代理机构
代理人
主权项
地址
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