Centrifugal apparatus for laboratory use; centrifuges for laboratory use; furnaces for laboratory experiments; glassware for laboratory use (specifically adapted); incubators for laboratory use; laboratory apparatus for scientific research; laboratory beakers; laboratory centrifuges; laboratory containers (other than for medical use); laboratory dispensers; laboratory glassware; laboratory incubators (other than for medical use); laboratory instruments (other than for medical use); laboratory mixers; laboratory trays; laboratory units for dispensing liquids; laboratory units for incubating liquids (other than for medical use); laboratory utensils (other than for medical use); ovens for laboratory experiments; plastic tubing adapted for use in laboratory apparatus; shaking machines for laboratory use; ultrasonic cleaning instruments for laboratory use