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• Written by: Charles L. Irvin ×
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1 result for “Owens-Corning Fiberglas”

1. Patent · September 26, 1967

   Method of producing asbestos-cement sheets containing cellulosic fiber (US Patent 3,344,015, 1967)

   …filed August 3, 1964. It was assigned to Johns Manville. The patent's description opens: This invention relates to the manufacture of asbestoscement sheets containing cellulosic fibers; more particularly, it relates to the manufacture of such…