CN205895191U - 一种隧洞化学灌浆孔口封闭装置 - Google Patents
一种隧洞化学灌浆孔口封闭装置 Download PDFInfo
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CN110821430A (zh) * | 2019-11-25 | 2020-02-21 | 中铁十九局集团矿业投资有限公司 | 一种用于钻孔摄像孔口固定装置及安装方法 |
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CN110821430A (zh) * | 2019-11-25 | 2020-02-21 | 中铁十九局集团矿业投资有限公司 | 一种用于钻孔摄像孔口固定装置及安装方法 |
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Effective date of registration: 20200330 Address after: 650041 No. 192 East Ring Road, Yunnan, Kunming Co-patentee after: QINGYUAN ENERGY STORAGE AND POWER GENERATION Co.,Ltd. Patentee after: SINOHYDRO BUREAU 14 Co.,Ltd. Address before: 650224 No. 192 East Ring Road, Yunnan, Kunming Patentee before: SINOHYDRO BUREAU 14 Co.,Ltd. |
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Effective date of registration: 20220617 Address after: 511800 Qingyuan Pumped Storage Power Station office building, Longwan village committee, Taiping Town, Qingxin District, Qingyuan City, Guangdong Province Patentee after: QINGYUAN ENERGY STORAGE AND POWER GENERATION Co.,Ltd. Address before: 650041 No. 192 East Ring Road, Yunnan, Kunming Patentee before: SINOHYDRO BUREAU 14 Co.,Ltd. Patentee before: Qingyuan Energy Storage Power Generation Co., Ltd |