Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860497 | Drill grinder having drill holder including chucks for gripping shank and body of the drill | Seiji Ohya | 1989-08-29 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860497 | Drill grinder having drill holder including chucks for gripping shank and body of the drill | Seiji Ohya | 1989-08-29 |