1 result for “Owens-Corning Fiberglas”
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Patent · September 27, 1938
Dolomitic Magnesium Carbonate (US Patent 2,131,374, 1938)
…filed August 17, 1936. The patent's description opens (from the scanned text): The invention relates to magnesium carbonate compositions of the type suitable for ilr sglgm urposes, and more particularly to an mproved composition of…