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发明名称
Item checking device
摘要
申请公布号
US2498703(A)
申请公布日期
1950.02.28
申请号
US19470719646
申请日期
1947.01.02
申请人
OLSON ABRAHAM D;MORRIS ISAAC A
发明人
OLSON ABRAHAM D.;MORRIS ISAAC A.
分类号
G09F7/00
主分类号
G09F7/00
代理机构
代理人
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