About: http://webisa.webdatacommons.org/393836891

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	As shown in FIG. 1, the filter 33 is formed of a sheet-like filtering material, such as filter paper.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com