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发明名称
Character sensing system
摘要
申请公布号
US2877951(A)
申请公布日期
1959.03.17
申请号
US19560631940
申请日期
1956.12.31
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
ROHLAND WILLIAM S.
分类号
G06K7/015;G06K9/20;G06K9/54
主分类号
G06K7/015
代理机构
代理人
主权项
地址
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