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发明名称
Document sensing device
摘要
申请公布号
US2690300(A)
申请公布日期
1954.09.28
申请号
US19510252389
申请日期
1951.10.20
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
WILSON LAWRENCE A.
分类号
B65H75/00;G06K19/04
主分类号
B65H75/00
代理机构
代理人
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地址
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