CN209961092U - 一种机械膨胀式封孔及注浆一体化大孔径静态破岩装置 - Google Patents
一种机械膨胀式封孔及注浆一体化大孔径静态破岩装置 Download PDFInfo
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CN110068256A (zh) * | 2019-06-04 | 2019-07-30 | 吕梁学院 | 一种机械膨胀式封孔及注浆一体化大孔径静态破岩装置及使用方法 |
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CN110068256A (zh) * | 2019-06-04 | 2019-07-30 | 吕梁学院 | 一种机械膨胀式封孔及注浆一体化大孔径静态破岩装置及使用方法 |
CN110068256B (zh) * | 2019-06-04 | 2023-06-20 | 吕梁学院 | 一种机械膨胀式封孔及注浆一体化大孔径静态破岩装置及使用方法 |
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Inventor after: He Quanzhi Inventor after: Lu Weiyong Inventor after: Liu Xiaoguang Inventor after: Liu Pengzhen Inventor after: Guo Jing Inventor after: Song Yaobin Inventor before: Lu Weiyong Inventor before: Liu Xiaoguang Inventor before: Liu Pengzhen Inventor before: Guo Jing Inventor before: Song Yaobin Inventor before: He Quanzhi |
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Granted publication date: 20200117 Effective date of abandoning: 20230620 |
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AV01 | Patent right actively abandoned |
Granted publication date: 20200117 Effective date of abandoning: 20230620 |