| 发明名称 |
STUB CENTER SILL FOR A RAILROAD CAR |
| 摘要 |
A one or two piece stub center sill for a railroad freight car formed by cold rolling or brake pressing one or two sheets of steel into a generally rectangula r configuration having outwardly extending bottom horizontal sections.
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| 申请公布号 |
CA2215070(A1) |
申请公布日期 |
1999.03.10 |
| 申请号 |
CA19972215070 |
申请日期 |
1997.09.10 |
| 申请人 |
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发明人 |
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| 分类号 |
B61F1/08;(IPC1-7):B61F1/08;B21D7/00 |
主分类号 |
B61F1/08 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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