AIRCO

ARC WELDING MACHINES; ARC WELDING WIRE AND ELECTRODES; ARC WELDERS; GAS CUTTING, WELDING AND SCARFING APPARATUS; WELDING ELECTRODE HOLDERS; WELDING ELECTRODES; [ FLAME CUTTING AND BEVELING APPARATUS; FLAME CLEANING APPARATUS; FLAME HARDENING APPARATUS; ] GAS WELDING AND CUTTING TIPS; GAS WELDING RODS; HARDFACING RODS AND ELECTRODES; OXY FUEL BURNERS; PLASMA CUTTING TORCHES AND APPARATUS; METAL WELDING RODS; TORCHES OR BLOWPIPES FOR WELDING, CUTTING, HEATING AND FLAME HARDENING AND PARTS THEREOF; TORCH HOLDERS AND CARRIAGES; WELDING CABLE; APPARATUS UTILIZING HEAT EXCHANGER MEANS FOR LIQUEFYING OR VAPORIZING GASES, LIQUIDS AND SOLIDS; HEAT EXCHANGER SYSTEMS FOR CONVERSION OF CARBON DIOXIDE; CARBON DIOXIDE HEATERS; CO2 PORTABLE RECEIVERS CONTAINING HEAT EXCHANGER MEANS; THERMAL ELECTRIC DISCHARGE MACHINING ELECTRODES; [ GRAPHITE ELECTRODES FOR ELECTROLYTIC AND ELECTROTHERMIC APPLICATIONS; ] HEAT EXCHANGERS; NON-THERAPEUTIC VAPORIZERS; [ CRUCIBLES, BOATS, TRAYS, JIGS, AND MOLDS FOR FURNACES; FUEL CELL ELECTRODES AND STRUCTURAL PLATES, FUEL ELEMENTS, MODERATORS, REFLECTORS, CONTROL RODS, THERMAL COLUMNS AND SHIELDING FOR NUCLEAR REACTORS AND HEATING ELEMENTS; ] ELECTRON BEAM FURNACES AND COMPONENT PARTS THEREOF; ELECTRON BEAM GUNS FOR HEATING PURPOSES; ELECTRON BEAM EVAPORATION APPARATUS; [ ELECTRON BEAM ANNEALING APPARATUS; ELECTRON BEAM SURFACE CONDITIONING APPARATUS; INDUCTION VACUUM FURNACES; ] HUMIDIFIERS AND ATMOSPHERIC CONDITIONING UNITS; SPARKLIGHTERS; AND HEATING ELEMENTS