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Invention Grant
US919473A Combined switch and cut-out. 失效
组合开关和切断。

  • Patent Title: Combined switch and cut-out.
  • Patent Title (中): 组合开关和切断。
  • Application No.: US1902133377
    Application Date: 1902-12-01
  • Publication No.: US919473A
    Publication Date: 1909-04-27
  • Inventor: SARGENT HOWARD R
  • Applicant: GEN ELECTRIC
  • Assignee: Gen Electric
  • Current Assignee: Gen Electric
  • Priority: US1902133377 1902-12-01
Combined switch and cut-out.
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