| 发明名称 |
Discoloration-resistant timepiece or jewelry part |
| 摘要 |
Timepiece or jewelry part manufactured in an alloy containing at least 75% gold by weight, from 21% to 23% copper by weight, and from 1% to 4% platinum by weight.
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| 申请公布号 |
US7311876(B2) |
申请公布日期 |
2007.12.25 |
| 申请号 |
US20040916853 |
申请日期 |
2004.08.12 |
| 申请人 |
ROLEX S.A. |
发明人 |
BAUR JACQUES;OULEVEY FREDERIC;SAUDAN MICHELE;VINCENT DENIS |
| 分类号 |
C22C5/02;A44C5/00;A44C27/00;G04B37/22 |
主分类号 |
C22C5/02 |
| 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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