CN209621246U - 一种不等截面积排屑槽的磨鞋 - Google Patents
一种不等截面积排屑槽的磨鞋 Download PDFInfo
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CN113404456A (zh) * | 2021-07-30 | 2021-09-17 | 中国石油化工股份有限公司 | 一种适用于页岩气井钻可溶桥塞的工艺方法 |
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CN113404456A (zh) * | 2021-07-30 | 2021-09-17 | 中国石油化工股份有限公司 | 一种适用于页岩气井钻可溶桥塞的工艺方法 |
CN113404456B (zh) * | 2021-07-30 | 2023-02-28 | 中国石油化工股份有限公司 | 一种适用于页岩气井钻可溶桥塞的工艺方法 |
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Denomination of utility model: A kind of grinding shoe with unequal cross section chip discharge groove Effective date of registration: 20221108 Granted publication date: 20191112 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Chengdu Asberi Technology Co.,Ltd. Registration number: Y2022980021072 |
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Date of cancellation: 20230710 Granted publication date: 20191112 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Chengdu Asberi Technology Co.,Ltd. Registration number: Y2022980021072 |
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Denomination of utility model: A type of grinding shoe with unequal cross-sectional area chip removal groove Effective date of registration: 20230914 Granted publication date: 20191112 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Chengdu Asberi Technology Co.,Ltd. Registration number: Y2023980056526 |