发明授权
US2582372A Justifying and differential spacing device for typewriters and the like 失效
用于打字机等的对齐和差分间隔装置

  • 专利标题: Justifying and differential spacing device for typewriters and the like
  • 专利标题(中): 用于打字机等的对齐和差分间隔装置
  • 申请号: US4024448
    申请日: 1948-07-23
  • 公开(公告)号: US2582372A
    公开(公告)日: 1952-01-15
  • 发明人: CLARKSON RALPH P
  • 申请人: CLARKSON RALPH P
  • 专利权人: Ralph P Clarkson
  • 当前专利权人: Ralph P Clarkson
  • 优先权: US4024448 1948-07-23
  • 主分类号: B41J19/64
  • IPC分类号: B41J19/64
Justifying and differential spacing device for typewriters and the like
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