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• Decade: 1930s ×
• Person: Carl H. Schuttler ×
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1 result for “Owens-Corning Fiberglas”

1. Patent · August 7, 1934

   Heat Insulating Material (US Patent 1,969,156, 1934)

   …1930. The patent's description opens (from the scanned text): The invention relates to heat insulating material and more particularly to an improved process for making heat insulating blocks and a preferred form .of apparatus for…