1 result for “Owens-Corning Fiberglas”
-
Patent · December 29, 1959
Chemically bonded vermiculite insulating blocks and method for manufacturing same (US Patent 2,919,202, 1959)
…filed August 26, 1957. It was assigned to Illinois Clay Products Co. The patent's description opens (from the scanned text): The invention relates to chemically bonded vermiculite insulating blocks and to methods for their manufacture.