2 results for “Owens-Corning Fiberglas”
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Patent · July 15, 1947
Magnesia Insulation (US Patent 2,423,839, 1947)
…It was assigned to Armstrong Cork Co. The patent's description opens (from the scanned text): The invention relates especially to magnesia inslution of the type known to the art as 85% ma nesia and particularly…
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Patent · July 15, 1947
Magnesia Insulation (US Patent 2,423,841, 1947)
…It was assigned to Armstrong Cork Co. The patent's description opens (from the scanned text): The invention relates especially to magnesia insulation of the type known to the art as 85% magnesia and particularly tothat…