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续表2到1994年9月21日止中国专利局已公开的焊接技术领域的发明专利序号 发明专利名称 申请日 授权公告日 专利号 专利权人 发明人506 铸铁与钢的电阻点 1993 01 17 1993 10 27 CNl077672A 河北工学院 丁惜宝、周胜 焊工艺 雄507 钛钙型碳钢电焊条 1992 04 14 药皮508 利用多脉
Continued Table 2 Patent Inventions of Patent Fields in the Welding Technology Field Published to China Patent Office by the China Patent Office on September 21, 1994 Serial No. Title of Invention Title of Patent Application Date Authorized Patent Day Patent No. Patent Owner Inventors 506 Resistance Points of Cast Iron and Steel 1993 01 17 1993 10 27 CN1077672A Hebei University of Technology Ding Xi Bao, Zhou Sheng welding process male 507 titanium calcium carbon steel electrode 1992 04 14 Cortex 508 using multi-pulse