About: http://webisa.webdatacommons.org/130012937

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	Fischer U.S. Pat. No. 4,089,768 discloses an electrolytic water purification system operated from a battery including an electrolytic cell which may purify water properly only when an applied voltage exceeds the battery output voltage.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com