| 发明名称 |
Track rail spike |
| 摘要 |
|
| 申请公布号 |
US1899264(A) |
申请公布日期 |
1933.02.28 |
| 申请号 |
US19310568121 |
申请日期 |
1931.10.10 |
| 申请人 |
ROBERT FARIES |
发明人 |
FARIES ROBERT |
| 分类号 |
E01B9/06 |
主分类号 |
E01B9/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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