公开/公告号DE202020103269U1
专利类型
公开/公告日2020-08-04
原文格式PDF
申请/专利权人 BEIJING-HARBIN RAILWAY PASSENGER DEDICATED LINE BEIJING-HEBEI CO. LTD.;CHINA RAILWAY DESIGN GROUP CO. LTD.;CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO. LTD.;CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP NO. 7 ENGINEERING CO. LTD.;
申请/专利号DE202020103269U
发明设计人
申请日2020-06-08
分类号B21F31;
国家 DE
入库时间 2022-08-21 11:00:52