About: http://webisa.webdatacommons.org/413275977

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	A medical device as claimed in claim 9 wherein said membrane is a porous film or non-woven fabric of at least one of a group of polyurethane, polyethylene, polyamide, and polytetrafluoroethylene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com