1 result for “Owens-Corning Fiberglas”
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Patent · September 19, 1950
Apparatus for fluffing asbestos (US Patent 2,522,936, 1950)
…1950, filed May 17, 1948. The patent's description opens (from the scanned text): This invention relates to insulating, fire and sound proofing blocks and to the method and apparatus for the manufacture of the same.