CN2922041Y - 用于销毁存储在磁记录介质上的信息的装置 - Google Patents
用于销毁存储在磁记录介质上的信息的装置 Download PDFInfo
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- CN2922041Y CN2922041Y CN 200620117963 CN200620117963U CN2922041Y CN 2922041 Y CN2922041 Y CN 2922041Y CN 200620117963 CN200620117963 CN 200620117963 CN 200620117963 U CN200620117963 U CN 200620117963U CN 2922041 Y CN2922041 Y CN 2922041Y
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Application Number | Priority Date | Filing Date | Title |
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CN 200620117963 CN2922041Y (zh) | 2006-05-31 | 2006-05-31 | 用于销毁存储在磁记录介质上的信息的装置 |
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CN 200620117963 CN2922041Y (zh) | 2006-05-31 | 2006-05-31 | 用于销毁存储在磁记录介质上的信息的装置 |
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CN2922041Y true CN2922041Y (zh) | 2007-07-11 |
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CN 200620117963 Expired - Fee Related CN2922041Y (zh) | 2006-05-31 | 2006-05-31 | 用于销毁存储在磁记录介质上的信息的装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US11961648B2 (en) | 2019-10-21 | 2024-04-16 | Beijing University Of Technology | Rapid demagnetization method based on characteristics of magnetic media |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11961648B2 (en) | 2019-10-21 | 2024-04-16 | Beijing University Of Technology | Rapid demagnetization method based on characteristics of magnetic media |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: BEIJING HESHENGDA TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: BEIJING HESHENGDA INFORMATION SAFETY TECHNOLOGY CO., LTD. Effective date: 20090515 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090515 Address after: Room 10A05, building No. 88 Beijing City Changyin Yongding road Haidian District postcode: 100039 Patentee after: Beijing Heshengda Technology Development Co., Ltd. Address before: Room 10A03, building No. 88 Beijing City Changyin Yongding road Haidian District postcode: 100039 Patentee before: Beijing HSD Information Security Technology Co., Ltd. |
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20130531 |