73070818
Dec 4, 1975
Mar 22, 1977
CONVEYORS FOR HANDLING SCRAP METAL; MOLDS, MOLD CARTS, AND LADLES FOR HANDLING MOLTEN METAL; AND PARTS OF THE FOREGOING
MachineryFURNACES WHICH SEPARATE METALS BY HEATING THEM TO THEIR RESPECTIVE MELTING TEMPERATURES; AFTER BURNERS AND FUME SCRUBBERS FOR CONTROLLING SMOKE AND OTHER EFFLUENT DISCHARGE FROM FURNACES AND HEATING PROCESSES; DRIERS AND PREHEATERS FOR METAL SCRAP MATERIALS; SMOKE HOODS; INCINERATORS; AND PARTS OF THE FOREGOING
Environmental Control Apparatus