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公开(公告)号:US12104235B2
公开(公告)日:2024-10-01
申请号:US17801946
申请日:2021-10-26
发明人: Kai-F. Binder , Avni Bajraktari
摘要: A piece of jewelry has a copper-containing gold alloy which consists of 75.0 to 75.2 wt. % gold, 16.5 to 17.0 wt. % copper, 3.1 to 7.1 wt. % silver, 1.2 to 3.2 wt. % palladium, and a remainder containing 0.5 to 2.5 wt. % zinc.