About: http://webisa.webdatacommons.org/202141395

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	FIG. 7A is a side view of a third embodiment of the apparatus of the invention showing a disc shaped charcoal filter element located in a medial portion of the filter.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com