About: http://webisa.webdatacommons.org/95154443

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	BACKGROUND OF THE INVENTION The use of silver and other metals, such as copper and aluminum, as disinfecting agents in water is well known.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com