发明授权
US2235948A Perforating, scoring, and punching attachment for printing presses 失效
印刷机的穿孔,刻痕和冲孔附件

  • 专利标题: Perforating, scoring, and punching attachment for printing presses
  • 专利标题(中): 印刷机的穿孔,刻痕和冲孔附件
  • 申请号: US29207739
    申请日: 1939-08-26
  • 公开(公告)号: US2235948A
    公开(公告)日: 1941-03-25
  • 发明人: SCHWISOW ARNOLD J
  • 申请人: SCHWISOW ARNOLD J
  • 专利权人: Arnold J Schwisow
  • 当前专利权人: Arnold J Schwisow
  • 优先权: US29207739 1939-08-26
  • 主分类号: B41G7/00
  • IPC分类号: B41G7/00
Perforating, scoring, and punching attachment for printing presses
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