Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11112044 | Anti-dropping steel ring used in press-fitting type pipe fitting and fixing sealing device | — | 2021-09-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11112044 | Anti-dropping steel ring used in press-fitting type pipe fitting and fixing sealing device | — | 2021-09-07 |