73139738
Sep 2, 1977
Dec 12, 1978
Active Trademark
REFRACTORY COMPOSITION USED IN HOT AND COLD GUNNING OF SOAKING PITS, IN-AND-OUT FURNACES, PLATE HEATING FURNACES, CONTINUOUS SLAB HEATING FURNACES, SLAG POCKETS, BULK HEADS, CHECKER CHAMBER BULK HEADS OF OPEN HEARTH FURNACES, CHECKER CHAMBER ARCHES AND SLAG POCKET SIDEWALLS
Nonmetallic Building Materials