method for manufacture of axles with conical and blunt point for tapping taatslegers in devices and instruments, and ash produced by the method

公开/公告号NL104084C

专利类型

公开/公告日1963-03-15

原文格式PDF

申请/专利号NL19570213929

申请日1957-01-22

分类号C21D8/06;C22C19/07;C22F1/10;F16C3/02;F16C17/08;G04B13/02;G04B31/008;G04D3;

国家 NL

入库时间 2022-08-23 17:26:17