About: http://webisa.webdatacommons.org/252341010

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 present invention teaches various techniques including apparatus and methods to clean filter media surfaces by stretching, flexing or vibrating surfaces of the filter media.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com