一种天井钻机钻杆自动安装及拆卸装置

• Disigner of the Invention:shenling,刘初升,王存款,陈杲,武继达,洪瑞,黄卓,赵薇
• Type of Patent:国际
• State of Patent:专利授权
• Application Number:201822012696.6
• Number of Inventors:9
• Service Invention or Not:no
• Application Date:2018-12-03
• Authorization Date:2019-07-09
• First Author:李洪喜