1 result for “Owens-Corning Fiberglas”
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Patent · January 3, 1961
Apparatus for the manufacture of multi-layer tubular bodies (US Patent 2,966,715, 1961)
…2,966,715 on January 3, 1961, filed June 12, 1957. The patent's description opens: The present invention relates to an apparatus for-the production of tubular, particularly cylindrical, bodies of concrete or the like.