Invention Grant
US3217956A Decreasing tape wear on exit side of vacuum column 失效
减少真空柱出口侧的胶带磨损

  • Patent Title: Decreasing tape wear on exit side of vacuum column
  • Patent Title (中): 减少真空柱出口侧的胶带磨损
  • Application No.: US11941461
    Application Date: 1961-06-26
  • Publication No.: US3217956A
    Publication Date: 1965-11-16
  • Inventor: VLADIMIR NEJEZCHLEB
  • Applicant: IBM
  • Assignee: Ibm
  • Current Assignee: Ibm
  • Priority: US11941461 1961-06-26
  • Main IPC: G11B15/58
  • IPC: G11B15/58
Decreasing tape wear on exit side of vacuum column
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