Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12128474 | Method for preparing negative pressure film-covering frozen sand mold | Haoqin Yang, Zhongde Shan, Jianpei Shi, Dandan Yan, Shijie Dong | 2024-10-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12128474 | Method for preparing negative pressure film-covering frozen sand mold | Haoqin Yang, Zhongde Shan, Jianpei Shi, Dandan Yan, Shijie Dong | 2024-10-29 |