Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880149 | Liquid metering device | Robert Johnston | 1989-11-14 |
| 4841905 | Sample processing unit | Robert Johnston | 1989-06-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880149 | Liquid metering device | Robert Johnston | 1989-11-14 |
| 4841905 | Sample processing unit | Robert Johnston | 1989-06-27 |