1 result for “Owens-Corning Fiberglas”
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Patent · October 22, 1968
Asbestos-cement product and process (US Patent 3,407,086, 1968)
…It was assigned to National Gypsum Co. The patent's description opens: This invention relates ot a process for treating cement substrates to increase the adhesion of finished coatings to the surface of such a substrate…