He; Chunling
Patent Applications and Registrations
Patent applications and USPTO patent grants for He; Chunling.The latest application filed is for "sawtooth structure with reversed cutting function and its drill series".
- He; Chunling - Liaoning CN
- HE; Chunling - Dalian Liaoning
| Patent | Date |
|---|---|
| Sawtooth structure with reversed cutting function and its drill series Grant 10,857,601 - Jia , et al. December 8, 2 | 2020-12-08 |
| Sawtooth Structure With Reversed Cutting Function And Its Drill Series App 20180257150 - JIA; Zhenyuan ; et al. | 2018-09-13 |
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