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1 result for “Owens-Corning Fiberglas”

1. Patent · June 18, 1935

   Heat Insulation Material (US Patent 2,005,356, 1935)

   …1927. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to heat-insulating packing; its object is to render fibrous packing material moisture-resistant and therefore less…