Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4773920 | Coated abrasive suitable for use as a lapping material | Ramon F. Hegel, Philip E. Kendall, Nathan B. Postma, Douglas S. Spencer | 1988-09-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4773920 | Coated abrasive suitable for use as a lapping material | Ramon F. Hegel, Philip E. Kendall, Nathan B. Postma, Douglas S. Spencer | 1988-09-27 |