Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4658116 | Hand-held electrical appliances | Fan Wung Aylwin Tsang, Ying-Shing Chan | 1987-04-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4658116 | Hand-held electrical appliances | Fan Wung Aylwin Tsang, Ying-Shing Chan | 1987-04-14 |