Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653106 | Indentation hardness meter | Sadao Yamatsuta | 1987-03-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653106 | Indentation hardness meter | Sadao Yamatsuta | 1987-03-24 |