About: http://webisa.webdatacommons.org/399846935

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	introduced, either by suction with the circulating pump 630 or by the head with respect to the pool under treatment, into the prefilter 622 where it is freed of hair, dust and other large impurities.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com