发明授权
- 专利标题: Railway-tie.
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申请号: US1909501589申请日: 1909-06-11
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公开(公告)号: US950327A公开(公告)日: 1910-02-22
- 发明人: HIGHBARGER CHARLES E
- 申请人: HIGHBARGER CHARLES E
- 专利权人: Charles E Highbarger
- 当前专利权人: Charles E Highbarger
- 优先权: US1909501589 1909-06-11