3 results for “Owens-Corning Fiberglas”
-
Patent · October 7, 1947
Magnesia Insulation (US Patent 2,428,555, 1947)
…1943. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to the manufacture of magnesia insulation, and is particularly directed to improvements in method and apparatus whereby…
-
Patent · May 9, 1944
Manufacture of Structural Shapes and Resultant Product (US Patent 2,348,614, 1944)
…1942. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to the manufacture of fireproof sheets and shapes adapted for building construction, and is particularly concerned with…
-
Patent · February 6, 1945
Molding and Curing Self-Setting Magnesia (US Patent 2,368,975, 1945)
…1942. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to magnesia insulation, and is particularly directed to a method of mold ing and curing magnesia insulation…