2 results for “Owens-Corning Fiberglas”
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Patent · January 8, 1935
Conduit system for insulation of underground steam pipes (Therm-O-Tile) (US Patent 1,987,517, 1935)
…filed July 8, 1933. The patent's description opens (from the scanned text): This invention relates in'general to conduits and more particularly to underground'conduits for housing, protecting and insulating pipes which are used for…
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Patent · July 23, 1935
Underground Conduit (US Patent 2,009,068, 1935)
…1934. The patent's description opens (from the scanned text): The invention has been shown in connection with tiles or blocks for conduits but obviously the invention is equally susceptible to use in building blocks for…