Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863004 | Spring clutch assembly | Martin E. Kummer | 1989-09-05 |
| 4860872 | Friction disc assembly | — | 1989-08-29 |
| 4832164 | Adjuster ring lock strap adapted for use in manual wear compensating clutches | — | 1989-05-23 |