Scientific apparatus and instruments, namely, ultra-high vacuum chambers; Scientific and technical apparatus, namely, optical mirrors; Scientific apparatus and instruments, namely, chromatography columns for use in purification in the laboratory and parts and fittings therefor; Scientific apparatus and instruments, namely, fluid handling device used for disposable bioprocessing applications and parts and fittings therefor; Scientific apparatus, namely, spectrometers and parts and fittings therefor; Scientific apparatus, namely, sensing and signaling devices for measurement and quality control of materials processing by laser; Scientific measuring instruments, namely, conductivity meters; Scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; Educational apparatus, namely, a transparent tank used as a teaching aid for the chemical process of making alternative fuels; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Teaching apparatus in the nature of a guard that is attached to the body of a woodwind instrument for music instruction; Educational apparatus in the nature of clock faces for use as teaching aids for children; Scientific apparatus for determining the water content in petroleum products; Scientific apparatus and instruments for measuring relative DNA, RNA and protein and parts and fittings therefor; Scientific apparatus, namely, spectrophotometer for measuring relative DNA, RNA and protein; Scientific laboratory research instruments for detecting pathogens; Scientific laboratory research instruments for thermal imaging; Scientific instruments, namely, electronic analyzers for testing consumer products for the presence of contaminants