发明授权
- 专利标题: Railroad-tie.
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申请号: US5523615申请日: 1915-10-11
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公开(公告)号: US1179451A公开(公告)日: 1916-04-18
- 发明人: OATS ODUS HENRY
- 申请人: OATS ODUS HENRY
- 专利权人: Odus Henry Oats
- 当前专利权人: Odus Henry Oats
- 优先权: US5523615 1915-10-11