Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5704432 | Coupling and centering device for attachment to a journal used in connecting the lower steering arm of a three point hitch of a tractor | Herbert Coenen | 1998-01-06 |
| 4917406 | Length-adjustable holding device for the lower steering arm of a three-point coupling device | Paul Herchenbach, Hermann Rugen | 1990-04-17 |
| 4865134 | Adjustable length strut and tractor linkage | Hermann Rugen, Paul Herchenbach | 1989-09-12 |
| 4619543 | Coupling assembly having a retainer plate for guiding a coupling hook | Jurgen Vollmer | 1986-10-28 |