| http://www.w3.org/ns/prov#value | - England, assignors to Celanese Corporation of America, a corporation of Delaware Application July 1, 1M6, Serial No. 680,828 1 In Great Britain July 13, 1945 This invention relates to the production of ar- 1 1 tificial materials and particularly to the spinning by extrusion of artificial filaments and like products, and is especially concerned with the spinning jets and jet assemblies by means of
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