1 result for “Owens-Corning Fiberglas”
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Patent · November 5, 1929
Insulating Structure (US Patent 1,734,209, 1929)
…1929, filed June 11, 1927. The patent's description opens (from the scanned text): This invention relates to improvements in the construction of a pre-formed insulating jacket which is Water proof, fire proof, durable and…