Glassware for use in a laboratory; beakers; glassware for scientific experiments in laboratories; test tubes; measuring glassware; pipet jars, namely, pipette racks for laboratory use; retorts for use in high temperature chemical reactions; insulated bottles, namely, flasks for laboratory use; droppers for measuring, other than for medical or household purposes; water level indicators; calibrated glassware; hollow glass containers for measuring; hollow glass containers for laboratory use; gla...