Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867131 | Combined heating dish and storage container for food | Lucas C. van der Merwe, Johannes Horn | 1989-09-19 |
| 4860454 | Self-propelled, self-steered vehicle for power driven plant trimming tools | Lucas C. van der Merwe | 1989-08-29 |