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
JP2023515104A
密钥更新方法及相关设备
申请日: 2020-02-29
公开(公告)日:2023-04-12
ホアウェイ·テクノロジーズ·カンパニー·リミテッド
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
