发明名称 Typewriter carbon paper with perforations - is of fabric, paper, plastics, or metal
摘要 <p>Perforations are such that part of the carbon paper can be torn off after use, so that the location at which copies are impressed is changed, and the carbon becomes exhausted more slowly.</p>
申请公布号 DE2314917(A1) 申请公布日期 1974.10.24
申请号 DE19732314917 申请日期 1973.03.26
申请人 HEZINGER GEB.UHLEMANN,ELSE 发明人 GEB.UHLEMANN,ELSE HEZINGER
分类号 B41M5/10;(IPC1-7):21H5/00 主分类号 B41M5/10
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