发明授权
US759634A Railway switch-stand operating point-locks and distant signals. 失效
铁路开关 - 操作点锁和距离信号。

  • 专利标题: Railway switch-stand operating point-locks and distant signals.
  • 专利标题(中): 铁路开关 - 操作点锁和距离信号。
  • 申请号: US1902120129
    申请日: 1902-08-18
  • 公开(公告)号: US759634A
    公开(公告)日: 1904-05-10
  • 发明人: ROBINSON EUGENE M
  • 申请人: ROBINSON EUGENE M
  • 专利权人: Eugene M Robinson
  • 当前专利权人: Eugene M Robinson
  • 优先权: US1902120129 1902-08-18
Railway switch-stand operating point-locks and distant signals.
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