2 results for “Owens-Corning Fiberglas”
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Patent · October 15, 1929
Aircell Pipe Covering (US Patent 1,732,018, 1929)
…018 on October 15, 1929, filed January 30, 1929. The patent's description opens (from the scanned text): My invention relates to in'lprovements in pipe coverings, more particularly the type used for heat insulating purposes.
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Patent · November 12, 1929
Method of Manufacturing Aircell Pipe Covering (US Patent 1,735,684, 1929)
…It was assigned to Concentric Air Cells Automatic. The patent's description opens (from the scanned text): My invention relates to a new and useful method of making air cell pipe covering of the type generally…