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Invention Grant
US3399394A Cyclical random access magnetic data storage system 失效
循环随机存取磁数据存储系统

  • Patent Title: Cyclical random access magnetic data storage system
  • Patent Title (中): 循环随机存取磁数据存储系统
  • Application No.: US48236565
    Application Date: 1965-08-25
  • Publication No.: US3399394A
    Publication Date: 1968-08-27
  • Inventor: SMITH PERRIN F
  • Applicant: IBM
  • Assignee: Ibm
  • Current Assignee: Ibm
  • Priority: US48236565 1965-08-25
  • Main IPC: G06F9/00
  • IPC: G06F9/00 ;  G11B20/12
Cyclical random access magnetic data storage system
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