发明授权
US2499655A Combination brush spacer and support for rotatable pipe cleaning machine brushes 失效
组合刷间隔件和可旋转管道清洁机刷的支撑

  • 专利标题: Combination brush spacer and support for rotatable pipe cleaning machine brushes
  • 专利标题(中): 组合刷间隔件和可旋转管道清洁机刷的支撑
  • 申请号: US67397946
    申请日: 1946-06-03
  • 公开(公告)号: US2499655A
    公开(公告)日: 1950-03-07
  • 发明人: LAURENT MILTON P
  • 申请人: LAURENT MILTON P
  • 专利权人: Milton P Laurent
  • 当前专利权人: Milton P Laurent
  • 优先权: US67397946 1946-06-03
  • 主分类号: A46B13/00
  • IPC分类号: A46B13/00 B08B9/023
Combination brush spacer and support for rotatable pipe cleaning machine brushes
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