1 result for “Owens-Corning Fiberglas”
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Patent · July 29, 1924
Cement Tiles, Sheets, etc (US Patent 1,503,409, 1924)
…No. 1,503,409 on July 29, 1924, filed September 10, 1920. The patent's description opens (from the scanned text): The present invention relates to a process of manufacturing tiles, sheets, ridging, et cetera, for…