About: http://webisa.webdatacommons.org/209118860

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 device comprises first and second expandable occluders fastened to each other, each occluder including a framework having a central hub with elongated struts radiating therefrom.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com