Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8248914 | Gateway device and method for maintaining a communication connection therethrough | — | 2012-08-21 |
| 7578776 | Apparatus for changing bits of machine tool | Ying Sun | 2009-08-25 |
| 7575542 | Apparatus for changing bits of machine tool | Ying Sun | 2009-08-18 |
| 7575543 | Bit-storing apparatus | Ying Sun | 2009-08-18 |
| 7387600 | Tool support device for machine tool | Ying Sun | 2008-06-17 |