About: http://webisa.webdatacommons.org/99119564

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 tissue and other particulate matter is prevented from entering the second conduit means by means of a sieve which is positioned over the one-way valve connecting the lower portions of the conduit means.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com