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发明名称
Optical comparing unit
摘要
申请公布号
US2594744(A)
申请公布日期
1952.04.29
申请号
US19500165567
申请日期
1950.06.01
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DILLING MARION R.
分类号
主分类号
代理机构
代理人
主权项
地址
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