Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852620 | Pipette with inverted bellows | Raymond F. Jakubowicz | 1989-08-01 |
| 4810653 | Cuvette with non-flexing thermally conductive wall | Jeffrey L. Helfer, David H. Middleton | 1989-03-07 |