Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280821 | Disintegrable lump abrasive grains and process for producing same | — | 1981-07-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280821 | Disintegrable lump abrasive grains and process for producing same | — | 1981-07-28 |