发明授权
- 专利标题: Rail-anchor
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申请号: US34610119申请日: 1919-12-19
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公开(公告)号: US1366558A公开(公告)日: 1921-01-25
- 发明人: COOPER FRANCIS W , HENRY STEADWORTHY
- 申请人: COOPER FRANCIS W , HENRY STEADWORTHY
- 专利权人: Francis W Cooper,Steadworthy Henry
- 当前专利权人: Francis W Cooper,Steadworthy Henry
- 优先权: US34610119 1919-12-19
- 主分类号: E01B13/02
- IPC分类号: E01B13/02