71569627
Nov 30, 1948
Mar 25, 1952
CONJOINT ACTING COMBINATION OF PARTLY PREPARED UNITS FOR KILN-AND ELECTRIC-FURNACE LINING-NAMELY, PARTLY PREPARED METALLIC PLATES AND PARTLY AND SPECIALLY PREPARED BRICKS WHICH WHEN PLACED IN THE KILN OR FURNACE IN A PRESCRIBED MANNER AND EXPOSED TO THE FIRST FIRING, CHEMICAL AND FUSION ACTION TAKES PLACE BETWEEN THE BRICKS AND PLATES TO PRODUCE A FINISHED MONOLITHIC FURNACE LINING
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