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
KR1020230048279A
以不同转速旋转且具有相同轴心的两个轴流式涡轮泵
申请日: 2023-03-29
公开(公告)日:2023-04-11
윤성업
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