1 result for “Owens-Illinois”
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Patent · January 10, 1967
Manufacture of mineral fiberboard (US Patent 3,297,517, 1967)
…517 on January 10, 1967, filed April 7, 1966. It was assigned to Wood Conversion Co. The patent's description opens: The present invention relates to mineral fiberboard and to improved formulations for making the same.