Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12172340 | Multi-layer roller stabilizing structure of stone cutting machine | — | 2024-12-24 |
| 12151506 | Reciprocal vibration type electric engraving pen | — | 2024-11-26 |
| 7066627 | Laser light beam guiding device on a stone cutter | — | 2006-06-27 |
| 6230819 | Gyration/reciprocating action switching mechanism for a power hand tool | — | 2001-05-15 |
| 5711380 | Rotate percussion hammer/drill shift device | — | 1998-01-27 |