Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D897429 | Electric punch | Siu Leung Chan, Huixiong Xiong, Lan Tu | 2020-09-29 |
| 10759078 | EG-1680 three hole electric puncher | Siu Leung Chan, Huixiong Xiong, Xinsheng Xiao | 2020-09-01 |