2 results for “Owens-Corning Fiberglas”
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Patent · June 5, 1923
Building Block (US Patent 1,457,454, 1923)
…June 5, 1923, filed June 21, 1920. The patent's description opens (from the scanned text): This invention has reference to 4building blocks. 4 One object of the invention is to provide a building block ofasbestos.
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Patent · September 9, 1930
Composition for Building Materials and Method of Producing Same (US Patent 1,775,621, 1930)
…1930, filed January 6, 1926. The patent's description opens (from the scanned text): This invention has for its principal object the manufacture of a fire-proof building materialsuch as could be used for shingles, wood…