同族类型
公开(公告)号/专利名称
当前申请(专利权)人
摘要附图
CN111111757B
整体式催化剂、制备方法及其使用方法
申请日: 2018-10-30
公开(公告)日:2023-04-07
中国石油化工股份有限公司,中国石油化工股份有限公司上海石油化工研究院
US4930427
Magnetic recording disc for computer data
申请日: 2004-10-27
公开(公告)日: 2004-10-27
Svilainis
US4930427
Magnetic recording disc for computer data - has sector subjected to different treatment to prevent unauthorised copying Magnetic recording disc for computer data
申请日: 2004-10-27
公开(公告)日: 2004-10-27
MICROSOFT CORPORATION
US4930427
Magnetic recording disc for computer data - has sector subjected to different treatment to prevent unauthorised copying Magnetic recording disc for computer data
申请日: 2004-10-27
公开(公告)日: 2004-10-27
MICROSOFT CORPORATION