| 发明名称 |
Elevated frog and rail track assembly |
| 摘要 |
The invention is a frog panel assembly for a railway turn-out switch, as well as a rail intersection design and a frog casting therefor.
|
| 申请公布号 |
US8424812(B1) |
申请公布日期 |
2013.04.23 |
| 申请号 |
US201213357258 |
申请日期 |
2012.01.24 |
| 申请人 |
VOELKERDING DANIEL;REMINGTON JAMES A.;CLEVELAND TRACK MATERIAL, INC. |
发明人 |
VOELKERDING DANIEL;REMINGTON JAMES A. |
| 分类号 |
E01B7/10 |
主分类号 |
E01B7/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
