中国石油获得发明专利授权:“无接箍套管弹性扶正器限位装置”

证券之星企业动态
29 Jul

证券之星消息,根据天眼查APP数据显示中国石油(601857)新获得一项发明专利授权,专利名为“无接箍套管弹性扶正器限位装置”,专利申请号为CN202110260002.4,授权日为2025年7月29日。专利摘要:本申请实施例提供一种无接箍套管弹性扶正器限位装置,包括:上限位部和下限位部。上限位部包括第一半环和第二半环,第一半环的第一端与第二半环的第一端转动连接,第一半环的第二端和第二半环的第二端...

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