Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862868 | Rotary dressing roller and method and apparatus for dressing cup-shaped grinding wheels | Harry D. Dodd | 1989-09-05 |
| 4844427 | Quenching apparatus | — | 1989-07-04 |
| 4805487 | Side gear mounting for differential assembly | — | 1989-02-21 |