2 results for “Owens-Corning Fiberglas”
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Patent · February 20, 1934
Pipe Coupling (US Patent 1,947,998, 1934)
…It was assigned to Johns Manville. The patent's description opens (from the scanned text): The present invention has for its subject matter a pipe coupling for all those applications where it is required that the…
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Patent · December 11, 1934
Process and Machinery for the Manufacture of Asbestos Cement Pipes of Small Diameter (US Patent 1,984,073, 1934)
…March 18, 1931. The patent's description opens (from the scanned text): This invention relates to improved asbestos and cement pipes of small diameter and to a process and machine for the manufacture of the same. …