发明名称 Verfahren zur Herstellung eines Zifferblattes mit Reliefzeichen und das mit diesem Verfahren hergestellte Zifferblatt
摘要 A depression in the die is filled with a liquid or pasty substance which supports the dial blank. A descending punch pushes the blank part way into the depression causing the substance of the cushion to force the blank into the punch hollows corresponding to the symbols to be raised. The die depression is surrounded by an upstanding rim that penetrates part way into the blank when the latter is pressed by the punch.
申请公布号 AT300674(B) 申请公布日期 1972.08.10
申请号 AT19690004021 申请日期 1969.04.25
申请人 JAP S.A. 发明人
分类号 B21D26/02;B21D26/021;B21D26/029;B44B5/02;G04B19/06;G04D3/00;G09F7/16;(IPC1-7):G04B19/06 主分类号 B21D26/02
代理机构 代理人
主权项
地址