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MACHINES, NAMELY, BATCH CHARGING MACHINES FOR USE IN THE GLASS INDUSTRY, CHARGING MACHINERY USED TO FEED MATERIALS TO A FURNACE

SHAPED FURNACE REFRACTORIES AND FURNACE REFRACTORY HANGERS; METALLIC HOLDERS AS STRUCTURAL COMPONENTS FOR FURNACES; METALLIC HOLDERS AND OTHER STRUCTURAL COMPONENTS FOR HIGH TEMPERATURE FURNACES

NON-METAL BUILDING MATERIALS, NAMELY, REFRACTORY BRICKS AND REFRACTORY STRUCTURES, SUSPENDED REFRACTORY WALLS AND ROOFS, FURNACE LININGS; UNIT ASSEMBLIES OF REFRACTORY BRICKS WITH HANGER ASSEMBLIES AND FRAMES FOR USE IN HIGH TEMPERATURE INDUSTRIAL FURNACE ROOFS

ENGINEERING AND DESIGN OF MACHINERY, FURNACES, REFRACTORIES, AND REFRACTORY STRUCTURES, NAMELY, SUSPENDED REFRACTORY WALLS AND ROOFS, SUCH AS RELATED TO THE GLASS INDUSTRY