About: http://webisa.webdatacommons.org/238069199

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	Membranes useful in the practice of the invention may be made from films of many types including polymeric materials and metals, such as metal foils.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com