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发明名称
ERADICATION OF MARKS FROM REACTANT RECORD MATERIAL
摘要
申请公布号
CA528542(A)
申请公布日期
1956.07.31
申请号
CAD528542
申请日期
申请人
THE NATIONAL CASH REGISTER COMPANY
发明人
DAVID W. STEINHARDT
分类号
主分类号
代理机构
代理人
主权项
地址
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