2 results for “Owens-Corning Fiberglas”
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Patent · September 4, 1934
Insulation Material (US Patent 1,972,500, 1934)
…1934. The patent's description opens (from the scanned text): This invention relates to insulating material and more particularly to thermal insulating material of minimized vapor breathing properties as indicated by minimized change in volume or…
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Patent · December 10, 1935
Thermal Insulating Article (US Patent 2,023,985, 1935)
…1932. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to thermal insulation and particularly to tubular, insulating pipe covering adapted to withstand alternate inundation by water…