Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831782 | Apparatus for grinding a workpiece | Arthur H. Clough, Edwin L. Knight | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831782 | Apparatus for grinding a workpiece | Arthur H. Clough, Edwin L. Knight | 1989-05-23 |