CN203744858U - 一种矿山下向中深孔精确定位堵塞装置 - Google Patents
一种矿山下向中深孔精确定位堵塞装置 Download PDFInfo
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- CN203744858U CN203744858U CN201420067567.6U CN201420067567U CN203744858U CN 203744858 U CN203744858 U CN 203744858U CN 201420067567 U CN201420067567 U CN 201420067567U CN 203744858 U CN203744858 U CN 203744858U
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CN201420067567.6U CN203744858U (zh) | 2014-02-17 | 2014-02-17 | 一种矿山下向中深孔精确定位堵塞装置 |
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CN201420067567.6U CN203744858U (zh) | 2014-02-17 | 2014-02-17 | 一种矿山下向中深孔精确定位堵塞装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2017083887A1 (en) * | 2015-11-09 | 2017-05-18 | Nielsen Marianna Susanna (Née Van Rensburg) | Blast plug |
CN111351407A (zh) * | 2020-02-28 | 2020-06-30 | 中国华冶科工集团有限公司 | 爆破装药孔的孔底封堵装置及其使用方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017083887A1 (en) * | 2015-11-09 | 2017-05-18 | Nielsen Marianna Susanna (Née Van Rensburg) | Blast plug |
CN111351407A (zh) * | 2020-02-28 | 2020-06-30 | 中国华冶科工集团有限公司 | 爆破装药孔的孔底封堵装置及其使用方法 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee after: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211103 Address after: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 |
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CF01 | Termination of patent right due to non-payment of annual fee |