Apparatus for laboratory use (other than medical); glassware for laboratory use (specifically adapted); laboratory apparatus (other than for medical use); laboratory apparatus for scientific research; laboratory articles (other than for medical use); laboratory beakers; laboratory containers (other than for medical use); laboratory dispensers; laboratory glassware; laboratory instruments (other than for medical use); laboratory power supply apparatus; laboratory trays; calculators; educational science sets; science sets for children being instructional apparatus; science sets for children being teaching apparatus