About: http://webisa.webdatacommons.org/34930453

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	The mattress as set forth in claim 1 wherein the liquid impermeable layer is a plastic such as polyvinyl chloride. 7.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com