发明名称 Watchcase having mechanism for securing crystal to case
摘要 The piece of jewelry protected by a hard metal shielding may consist of a metallic watchband composed of elements jointed to each other. In this case each one of said elements comprises a body member 61 of a material suitable for machining, such as stainless steel, and a plate 64 of sintered hard metal which is secured to body member 61 by means of plugs 65 welded against the back side of plate 64 and riveted to body member 61. The upper surface of the watchband elements is thus protected against injuries which contacts with foreign bodies could produce. Since that face of the watchband elements is practically the only one which is visible, when the watch is carried, the watchband will keep its original appearance during all the time it will be carried.
申请公布号 US4740935(A) 申请公布日期 1988.04.26
申请号 US19870049312 申请日期 1987.05.13
申请人 MONTRES RADO S.A. 发明人 GOGNIAT, PAUL
分类号 A44C27/00;G04B37/00;G04B37/22;(IPC1-7):G04B37/00 主分类号 A44C27/00
代理机构 代理人
主权项
地址