73103852
Oct 20, 1976
Nov 22, 1977
REFRACTORY PRODUCTS AND MATERIALS PRIMARILY FOR USE IN INDUSTRIAL FURNACES COMPRISING BASIC REFRACTORY BRICKS; BASIC REFRACTORY SPECIALTY PRODUCTS SUCH AS CEMENTS, MORTARS, COATINGS, RAMMING, CASTING AND GUNNING MIXES; CLAY-ALUMINA FIREBRICK OF ALL KINDS WITH THE EXCEPTION OF SILICA; CLAY-ALUMINA REFRACTORY SPECIALTY PRODUCTS INCLDING PLASTICS, CASTABLES, RAMMING AND GUNNING MIXES, CEMENTS, MORTARS, COATINGS AND PATCHING MIXES; DEAD BURNED DOLOMITE; DEAD BURNED MAGNESITE; REFRACTORY INSULATING MATERIALS INCLUDING BRICK; PERICLASE ALSO SOMETIMES COMMONLY REFERRED TO IN THE TRADE AS MGO; METAL ENCASED BASIC REFRACTORY BRICK AND METAL AND REFRACTORY ANCHORING ELEMENTS USED TO HOLD REFRACTORY SECTIONS OF INDUSTRIAL FURNACES IN PLACE SUCH AS ARCH AND WALL BRACKETS, WALL CLIPS AND ANCHOR HANGERS
Nonmetallic Building Materials