Laboratory glassware; Laboratory equipment, namely, plastic, rubber and elastomer closures, seals and stoppers for laboratory bottles; Laboratory equipment, namely, crucibles; Electrodes for laboratory research; Laboratory apparatus, namely, cellular mixed ester membranes for use in the analysis of asbestos; Laboratory equipment, namely, pipette racks; Scientific apparatus and instruments, namely, chromatography columns for use in purification in the laboratory and parts and fittings therefor...