发明名称 Card stock sheets with improved severance means
摘要 A card stock sheet prepared for subsequent severance along a perforation line in the sheet defined by a sequence of closely spaced perforations and a continuous score cut at one surface of the sheet, extending part way into the sheet and coinciding with the perforation line with the uncut portions of the sheet between the perforations maintaining sheet integrity and with the score cut line providing a smooth edge when severance occurs.
申请公布号 US5198275(A) 申请公布日期 1993.03.30
申请号 US19910745078 申请日期 1991.08.15
申请人 KLEIN, GERALD B. 发明人 KLEIN, GERALD B.
分类号 B42D5/02;G09F3/02;G09F3/10 主分类号 B42D5/02
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