About: http://webisa.webdatacommons.org/122394539

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	U.S. Pat. No. 3,617,442 to Hurschaman discloses that conventional batting may be replaced by a synthetic, open-celled, flexible foam, such as polyurethane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca