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发明名称
Reading machine
摘要
申请公布号
US2261542(A)
申请公布日期
1941.11.04
申请号
US19370180980
申请日期
1937.12.21
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DICKINSON ARTHUR H.;WHEELER JOHN N.
分类号
G06K9/18;G06K19/08
主分类号
G06K9/18
代理机构
代理人
主权项
地址
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