2 results for “Owens-Corning Fiberglas”
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Patent · March 23, 1926
Heat Insulating Material (US Patent 1,577,495, 1926)
…1921. The patent's description opens (from the scanned text): This invention relates to improvements in insulating material for use on pipes where in are conveyed vapors or liquids such as steam or hot water for…
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Patent · December 29, 1925
Shingle (US Patent 1,567,817, 1925)
…February 8, 1924. The patent's description opens (from the scanned text): This invention relates to roofing and shinles and particularly to the type of shingle own as the asbestos and asphalt or asphalt shingles. v…