Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031739 | Two piece clutch brake | Richard A. Flotow, Jerry L. Rathburn, Martin E. Kummer | 1991-07-16 |
| 4479569 | Spring means for a clutch | Martin E. Kummer, William H. Sink | 1984-10-30 |