<http://webisa.webdatacommons.org/41604779>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/41604779>	<http://www.w3.org/ns/prov#value>	"An apparatus according to claim 8 including an annular die for extruding a tube of thermoplastic material, means for preventing an inflation pressure from rupturing the extruding tube, means for drawing" .
<http://webisa.webdatacommons.org/prov/262160145>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/41604779> .
<http://webisa.webdatacommons.org/41604779>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .