JOY

METAL GOODS USED IN WELL DRILLING OPERATIONS COMPRISING CASING BOWLS, CLAMPS, COLLARS, PIPES, AND PARTS THEREOF

MINING MACHINES FOR THE EXTRACTION OF BEDDED MATERIALS COMPRISING CONTINUOUS MINERS, LONGWALL MINING MACHINES, SHORT WALL MINING MACHINES, KERF CUTTERS, SHEARING MACHINES, DRILLING MACHINES, MACHINERYFOR LOADING, HAULING AND DUMPING OF MINERALS, COAL AND OTHER MATERIAL, SUCH MACHINERY COMPRISING CONVEYOR APPARATUS FOR CONTINUOUS TRANSPORTATION OF BULK MATERIALS, ENDLESS BELT CONVEYORS, CONVEYOR SUPPORTS, GATHERING ARM LOADERS, SHUTTLE CAR CONVEYOR; MINE ROOF SUPPORT AND ROOF MAINTENANCE MACHINERY COMPRISING HYDRAULICALLY OPERATED ROOF SUPPORT MACHINES, RF SUPPORT AND ROOF MAINTENANCE MACHINERYRY COMPRISING HYDRAULICALLY OPERATED ROOF SUPPORT MACHINES, ROOF SHIELDS, ROOF CHOCKS, ROOF DRILLING MACHINES, ROOF BOLTGAS SCRUBBERS, MECHANICAL DUST COLLECTORS, AIR CHAMBERS TO HOUSE BAG TYPE FILTERS; FLUID COMPRESSORS COMPRISING AIR COMPRESSORS, ROTARY COMPRESSORS, RECIPROCAL COMPRESSORS, CENTRIFUGAL COMPRESSORS, SCREW COMPRESSORS, RECYCLE GAS COMPRESSORSFUGAL COMPRESSORS, SCREW COMPRESSORS, REPULLEYS, AND BLOCKS; WELL DRILLING MACHINERY COMPRISING PIPE, CASING AND DRILL ROD HANDLING APPARATUS, MAKE-UP AND BREAK CASING AND DRILL ROD HANDLING APPARATUS, KELLY DRIVES, PULSATION STABILIZATING EQUIPMENT, CATHEADS, TONG BLOCKS, BRUSHINGS, ELEVATORS, HOOKS, LINERS, LINKS, SLIPS, SPIDERS, SUBS AND BUMPER SUBS, TONGS, WELL HEADS, MACHINERY FOR MINERAL, COAL AND CHEMICAL PROCESSING COMPRISING THICKENERS, CLARIFIERS, FLOATATION CELLS, PUMPS, BALL MILLS, ROD MILLS, ATTRITION SCRUBBERS, AGITATORS, DISC FILTERS, SAMPLERS, MIXERS, MINERAL JIGS, PULP DISTRIBUTORS, GOLD PLACER APPARATUS, CRUSHERS, PULVERIZERS, PRESSURE AND VACCUUM FILTERS AND PARTS THEREOF

ELECTRICAL AND SCIENTIFIC GOODS COMPRISING ELECTRICAL SWITCHES AND HOUSINGS FOR SINGLE AND MULTIPLE SWITCHING UNITS, ELECTRICAL CONNECTORS BOTH LINE AND TERMINAL TYPES, LAMP SOCKETS, AIR-CRAFT RUNWAY POWER DISTRIBUTION CONNECTORS, HIGHWAY LIGHTING CONNECTORS, ELECTRIC PLUGS AND RECEPTACLES, LOW VOLTAGE POWER DISTRIBUTION BOXES, GROUND FAULT DETECTORS, CIRCUIT CONTINUITY DETECTORS; ELECTRICAL GOODS FOR AIR POLLUTION CONTROL COMPRISING ELECTROSTATIC PRECIPITATORS; AND PARTS THEREOF

ENVIRONMENTAL CONTROL APPARATUS COMPRISING POLLUTION CONTROL AND GAS CLEANING APPARATUS-NAMELY, BAG HOUSE TYPE FILTERS, DUST VALVES, AND AIR LOCKS; HEAT EXCHANGERS; DISC FILTERS; PRESSURE VACUUM FILTERS; ELECTRIC HEATERS; VENTILATION AND GAS HANDLING APPARATUS COMPRISING FANS, CENTRIFUGAL, VANE AXIAL, TUBE AXIAL AND PROPELLER TYPES; AND PARTS THEREOF

CRAWLER AND RUBBER TIRE LAND VEHICLES FOR TRANSPORTING MINING AND EXCAVATION EQUIPMENT AND MATERIAL COMPRISING , CONVEYORS, CUTTERS, ROTARY DRILLS; SHUTTLE CARS; AND PARTS THEREOF