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发明名称
Manifold record material and process for making it
摘要
申请公布号
US2550467(A)
申请公布日期
1951.04.24
申请号
US19500183532
申请日期
1950.09.07
申请人
THE NATIONAL CASH REGISTER COMPANY
发明人
GREEN BARRETT K.;SANDBERG ROBERT W.
分类号
B41M5/155
主分类号
B41M5/155
代理机构
代理人
主权项
地址
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