10 Cell culture monitors, apparatus and instruments for medical use, namely, cell culture monitors, viable cell monitors, biomass monitors and biomass sensors for measurement of biomass; biomass measurement apparatus and instruments for medical use, namely, yeast monitors, probes for yeast monitors, yeast monitors for the control of control switches, yeast monitors for the control of introduction of liquids bearing yeast into settling and storage vessels; biomass monitoring apparatus and instruments for medical use, namely, yeast monitors, probes for yeast monitors, yeast monitors for the control of control switches, yeast monitors for the control of introduction of liquids bearing yeast into settling and storage vessels; medical analysis instruments and apparatus, namely, yeast analyzers for medical use; medical testing instruments and apparatus, namely, cell culture monitors, viable cell monitors, biomass monitors and biomass sensors for measurement of biomass; monitoring equipment for medical use, namely, cell culture, viable cell, biomass and yeast monitoring equipment; diagnostic equipment for medical purposes, namely, flow cytometers and hemocytometers for medical diagnostic uses; structural parts and fittings for the aforesaid goods