3 results for “Owens-Corning Fiberglas”
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Patent · March 17, 1942
Sheet Product (US Patent 2,276,869, 1942)
…276,869 on March 17, 1942, filed October 30, 1937. The patent's description opens (from the scanned text): This invention relates to an article of manu-' facture and the method and machine for making it.
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Patent · January 11, 1944
Causticizing of Waste Magnesia Products (US Patent 2,338,886, 1944)
…It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to basic magnesium carbonate compositions of the type suitable for insulating purposes in the form of pipe coverings…
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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…