发明名称 METHOD OF MAKING A WATCHCASE
摘要 A method of making a watchcase, in which two projections are formed on a joining surface of a part of the watchcase, such as a band connecting lug. The part is joined to another part such as a case body by projection welding to make the watchcase.
申请公布号 GB2123330(B) 申请公布日期 1986.05.21
申请号 GB19830012079 申请日期 1983.05.03
申请人 * CITIZEN WATCH CO LTD 发明人 TSUNEJI * TAKASUGI
分类号 G04B37/14;G04B37/22;(IPC1-7):B23K11/14;G04B37/18 主分类号 G04B37/14
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