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Invention Grant
US705082A Surface-contact electric railway. 失效
表面接触电动铁路。

  • Patent Title: Surface-contact electric railway.
  • Patent Title (中): 表面接触电动铁路。
  • Application No.: US1897655777
    Application Date: 1897-10-20
  • Publication No.: US705082A
    Publication Date: 1902-07-22
  • Inventor: HEWLETT EDWARD M
  • Applicant: GEN ELECTRIC
  • Assignee: Gen Electric
  • Current Assignee: Gen Electric
  • Priority: US1897655777 1897-10-20
Surface-contact electric railway.
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