Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884993 | Harvester thresher | Heinrich Hemker | 1989-12-05 |
| 4881920 | Self-propelling harvester thresher | — | 1989-11-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884993 | Harvester thresher | Heinrich Hemker | 1989-12-05 |
| 4881920 | Self-propelling harvester thresher | — | 1989-11-21 |