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发明名称
Statistical card operated machine
摘要
申请公布号
US2150243(A)
申请公布日期
1939.03.14
申请号
US19340741029
申请日期
1934.08.23
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
PAGE RALPH E.
分类号
G06K13/07
主分类号
G06K13/07
代理机构
代理人
主权项
地址
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