PORTABLE POWDER DISPENSING MACHINES; CLEANING COMPONENTS BEING PARTS OF PORTABLE POWDER DISPENSING MACHINES; POWER-OPERATED SPRAY GUNS FOR STANDARD AND METALLIC POWDERS; INDUSTRIAL MACHINERY, namely, FLUID METERING, MIXING, AND RATIO CONTROL MACHINES FOR MIXING FLUIDS, namely, STANDARD AND METALLIC POWDERS; ELECTRONIC SPRAYING CONTROL EQUIPMENT BEING PARTS OF SPRAYING MACHINES, namely, ELECTRONIC CONTROL EQUIPMENT FOR CONTROL OF SPRAY PATTERNS BASED IN PART ON CONTROL EQUIPMENT FEEDBACK, CONTROL OF COATING THICKNESSES BASED IN PART ON CONTROL EQUIPMENT FEEDBACK, CONTROL OF FIRST COAT AND RE-COAT BASED IN PART ON CONTROL EQUIPMENT FEEDBACK, CONTROL OF COMPLEX PART GEOMETRY BASED IN PART ON CONTROL EQUIPMENT FEEDBACK, ELECTRONIC CONTROL EQUIPMENT FOR DELIVERY OF POWDER COATING MATERIALS TO FLUID APPLICATORS; POWER-OPERATED FLUID APPLICATORS, namely, SPRAY APPLICATORS AND ATOMIZERS FOR SPRAYING POWDERS; SPRAYING MACHINES AND PARTS THEREOF AND ATTACHMENTS AND ACCESSORIES FOR USE THEREWITH, namely, A NOZZLE, A HOSE, A FLOW METER, A FLOW SENSOR ALL SOLD TOGETHER AS A UNIT OR SPECIALLY ADAPTED FOR USE WITH SPRAYING MACHINES; AUTOMATIC AND SEMI-AUTOMATIC SPRAYING MACHINES AND PARTS THEREOF; ATTACHMENTS AND ACCESSORIES FOR AUTOMATIC AND SEMI-AUTOMATIC SPRAYING MACHINES, namely, POWDER COATING SPRAY GUNS, POWER-OPERATED ATOMIZERS FOR INDUSTRIAL OR COMMERCIAL USE