Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9469011 | Grinder and grinding machine | — | 2016-10-18 |
| 5732690 | Apparatus for cutting a stone member so as to have a curved surface | — | 1998-03-31 |
| 5690092 | Apparatus for cutting a stone member so as to have a curved surface | — | 1997-11-25 |
| 4406274 | Sound arrester of circular blade | — | 1983-09-27 |