| 435 / | HD | CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY |
| 283.1 | DF | APPARATUS {9} |
| 286.1 | DF | .~ Including condition or time responsive control means {4} |
| 286.2 | ![]() | .~.~ Including position control {2} |
| 286.3 | DF | .~.~.~> Plater, streaker, or spreader |
| 286.4 | DF | .~.~.~> Including liquid dispenser means |