YANTAI JEREH PETROLEUM EQUIP. AND TECH. Co., Ltd.
Patent Applications and Registrations
Patent applications and USPTO patent grants for YANTAI JEREH PETROLEUM EQUIP. AND TECH. Co., Ltd..The latest application filed is for "continuous oil pipe clamp mechanism".
- YANTAI JEREH PETROLEUM EQUIP. AND TECH. Co., Ltd. - Yantai Shandong CN
| Patent | Date |
|---|---|
| Continuous oil pipe clamp mechanism Grant 9,617,808 - Liu , et al. April 11, 2 | 2017-04-11 |
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