About: http://webisa.webdatacommons.org/81887902

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	In the preferred embodiments of the invention, the first layer is a substrate having a central portion and a plurality of extensions or finger portions extending from the central portion.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com