Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841680 | Inverted cell pad material for grinding, lapping, shaping and polishing | Mark F. Hoffstein | 1989-06-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841680 | Inverted cell pad material for grinding, lapping, shaping and polishing | Mark F. Hoffstein | 1989-06-27 |