About: http://webisa.webdatacommons.org/203759585

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	he present invention are typically fabricated from relatively flexible materials, such as Teflon, Kel-F, Vespel, EPR, silicon or other similar materials.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com