Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11175122 | Automatic nut internal thread quality tester | Der-Min Tsay, Tsung-Chun Lin, Ming-Chao Hwang | 2021-11-16 |
| 11141806 | Automatic nut tapping equipment | Der-Min Tsay, Tsung-Chun Lin, Wei-Ming Chen | 2021-10-12 |