发明授权
- 专利标题: Means for fixing railway rails
- 专利标题(中): 铁路固定装置
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申请号: US70313246申请日: 1946-10-14
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公开(公告)号: US2490962A公开(公告)日: 1949-12-13
- 发明人: REIDAR HEYERDAHL-LARSEN , EINAR BACKE-HANSEN
- 申请人: REIDAR HEYERDAHL-LARSEN , EINAR BACKE-HANSEN
- 专利权人: Heyerdahl-Larsen Reidar,Backe-Hansen Einar
- 当前专利权人: Heyerdahl-Larsen Reidar,Backe-Hansen Einar
- 优先权: NO2490962X 1942-11-18
- 主分类号: E01B9/48
- IPC分类号: E01B9/48