| 发明名称 |
Drive pulley for elevators and method of manufacture thereof |
| 摘要 |
A drive pulley for elevators, with at least two sectors, wherein at least one sector is hardened and at least one sector is not hardened.
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| 申请公布号 |
US2004211497(A1) |
申请公布日期 |
2004.10.28 |
| 申请号 |
US20040827832 |
申请日期 |
2004.04.20 |
| 申请人 |
INVENTIO AG |
发明人 |
AMMON URS;BLOCH HANSPETER |
| 分类号 |
B66B15/04;(IPC1-7):C21D1/10 |
主分类号 |
B66B15/04 |
| 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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