Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4651677 | Apparatus for preventing shoats from being crushed to death in hog breeding operations and the use thereof as a device for indicating the start of the dam's birthing procedure | Paulus A. J. de Wit | 1987-03-24 |