2 results for “Owens-Corning Fiberglas”
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Patent · March 19, 1957
Cementitious material containing slate flour (US Patent 2,785,987, 1957)
…1952. The patent's description opens (from the scanned text): This invention relates to cementitious material such as used for roofing or siding and it has for its primary object to provide a cementitious material containing…
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Patent · July 25, 1961
Plastic containing composition and the process of making the same (US Patent 2,993,799, 1961)
…filed August 20, 1957. The patent's description opens: This invention relates to a new lightweight construction material and to a process for making the same, and it has for its principal object to produce a…