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1 result for “Owens-Corning Fiberglas”

1. Patent · October 11, 1938

   Chemical Heating Pad (US Patent 2,133,115, 1938)

   …1938. It was assigned to US Appliance Corp. The patent's description opens (from the scanned text): This invention relates generally to the construction of so-called chemical heating pads, particularly pads suitable for carrying out…