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CN112755591B
脱除有机溶剂中碱性含氮物质的方法和芳烃烷基化反应的方法及芳烃烷基化反应的装置
申请日: 2019-10-21
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
