| 发明名称 |
Casting filigree type jewellry by addition of film forming - elements to noble metals for stripping mould material from casting |
| 摘要 |
<p>Small amounts of oxide-film forming elements are added to noble metals and alloys, which are centrifugally cast to form filigree-type jewellery and decorative or intricately shaped articles, for ease of stripping the mould material from the casting.</p> |
| 申请公布号 |
DE2024071(A1) |
申请公布日期 |
1971.11.25 |
| 申请号 |
DE19702024071 |
申请日期 |
1970.05.16 |
| 申请人 |
EUGEN DUERRWACHTER DODUCO FA D |
发明人 |
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| 分类号 |
C22C5/00;(IPC1-7):22C5/00 |
主分类号 |
C22C5/00 |
| 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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