7 MILKING MACHINES AND PARTS THEREOF, NAMELY, MILKING CUPS, TEAT RUBBERS, VALVES AND COLLECTING PIECES; MILKING MACHINE CONTROL APPARATUS, NAMELY, PULSATORS; AUTOMATIC MILKING UNIT REMOVING MACHINES; UDDER CLEANING DEVICES IN THE NATURE OF SPRAYERS; CLEANING SYSTEMS, COMPRISING CLEANING LIQUID, PUMPS, AND INJECTORS, FOR AUTOMATIC EQUIPMENT; AND AUTOMATIC COW FEEDERS