公开/公告号US4814141A
专利类型
公开/公告日1989-03-21
原文格式PDF
申请/专利权人 JAPAN AS REPRESENTED BY DIRECTOR GENERAL TECHNICAL RESEARCH AND DEVELOPMENT INSTITUTE JAPAN DEFENSE AGENCY;NIPPON STEEL CORPORATION;KAWASAKI STEEL CORPORATION;
申请/专利号US19870045174
申请日1987-04-22
分类号C22C38/46;
国家 US
入库时间 2022-08-22 06:28:24