CN214836110U - 一种仪器投送装置及定向钻探水压式工具及定向钻探工具 - Google Patents
一种仪器投送装置及定向钻探水压式工具及定向钻探工具 Download PDFInfo
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Effective date of registration: 20220505 Address after: 36 Zhonghuan West Road, pilot free trade zone (Airport Economic Zone), Binhai New Area, Tianjin Patentee after: CHINA RAILWAY LIUYUAN GROUP Co.,Ltd. Patentee after: Guangzhou Metro Group Co., Ltd Address before: 36 Zhonghuan West Road, pilot free trade zone (Airport Economic Zone), Binhai New Area, Tianjin Patentee before: CHINA RAILWAY LIUYUAN GROUP Co.,Ltd. Patentee before: GUANGZHOU METRO GROUP Co.,Ltd. Patentee before: Hunan Weicheng Geological Technology Co.,Ltd. |