| Number | Name | Date | Kind |
|---|---|---|---|
| D379492 | Walker et al. | May 1997 | |
| 5607581 | Gerner et al. | Mar 1997 |
| Entry |
|---|
| Tri-Continent Scientific, "Accupump Modular Liquid-Handling System", Doc. 7703-01, pp. 1-4. |
| PFC Precision Series, "PD-9000". |
| Dispensit Model 1000 Series, "Rod Positive Displacement Dispense Valve", 1993. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 068742 | Mar 1997 |