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1 result for “Owens-Illinois”

1. Patent · October 27, 1931

   Method of Making Colored Composition Slabs (US Patent 1,829,187, 1931)

   …1929. It was assigned to Eternit Inc. The patent's description opens (from the scanned text): My invention pertains to a method and means of coloring cement composition sheets or slabs used as shingles, building boards…