发明授权
- 专利标题: Anchor and clip for rails and the like
- 专利标题(中): 锚杆和夹子等
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申请号: US51920121申请日: 1921-12-01
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公开(公告)号: US1422340A公开(公告)日: 1922-07-11
- 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: US51920121 1921-12-01
- 主分类号: E01B9/48
- IPC分类号: E01B9/48