Measuring apparatus, namely, apparatus for measuring the volume flow rate of liquids and gases, apparatus for measuring temperatures in liquids and gases, apparatus for measuring the oil vapor content in compressed air and compressed gas; checking apparatus, namely, devices for monitoring compressed air and compressed gas systems

Electric apparatus and instruments for treating compressed air in the nature of apparatus for heating, namely, electric heating fans, hot-air space heating apparatus, hot-water space heating apparatus, heat exchangers other than parts of machines, heating units for industrial purposes, heat generators, heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or low temperature water circulates; apparatus for steam generating, namely, steam generators, steam valves, steam radiators for heating buildings; electric apparatus and instruments for treating compressed air in the nature of apparatus for refrigerating purposes, namely, refrigerating machines and installations, refrigerating cabinets, refrigerator condensers, cooling evaporators; drying modules for compressed air and pressurized gases, namely, drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; apparatus for water supply purposes, namely, water and condensate control valves for compressed air systems, metered valves, filters for separating oil and water being parts of industrial installations, industrial dryers for heating and dehumidifying; water treatment plants for purification of the water for commercial or industrial use; drying modules used for the removal of solid, liquid and vapor contaminants from compressed air and compressed gas for use in heating, ventilation systems, air conditioning systems and refrigeration systems; plumbing apparatus for draining condensate from pressurized gas lines or containers, namely, condensate drainers; apparatus for the separation of liquid mixtures in their constituents, especially oil-water-mixtures for the cleaning and purification of liquids; taps for water pipes; pipes' taps in the nature of faucets; taps for pipes used in heating, ventilation systems, air conditioning systems and refrigerating systems; electrical dryers for treating compressed air