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Invention Grant
US839368A Spring-support for measuring instruments. 失效
用于测量仪器的弹簧支撑。

  • Patent Title: Spring-support for measuring instruments.
  • Patent Title (中): 用于测量仪器的弹簧支撑。
  • Application No.: US1903174694
    Application Date: 1903-09-26
  • Publication No.: US839368A
    Publication Date: 1906-12-25
  • Inventor: DEMPSTER JOHN THOS
  • Applicant: GEN ELECTRIC
  • Assignee: Gen Electric
  • Current Assignee: Gen Electric
  • Priority: US1903174694 1903-09-26
Spring-support for measuring instruments.
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