发明名称 Method of manufacturing a timepiece component
摘要 A timepiece display component such as hands and dial plates, which component comprises a first electroformed metal layer having an internal compressive stress, and a second electroformed metal layer formed over said first electroformed metal layer and including an internal tensile stress, such that the internal stresses of the first and second metal layers cancel each other out to reduce the amount of warping distortion in the display component.
申请公布号 US4455199(A) 申请公布日期 1984.06.19
申请号 US19830504099 申请日期 1983.06.13
申请人 CITIZEN WATCH COMPANY LIMITED 发明人 ENOMOTO, TADAO
分类号 G04B19/04;G04B19/06;G04D3/00;(IPC1-7):C25D1/00;C25D1/20 主分类号 G04B19/04
代理机构 代理人
主权项
地址