About: http://webisa.webdatacommons.org/200762682

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	What is needed and addressed by the present invention was a technique that could enhance grip in an expansion situation without increasing the force required to expand and be workable in a tight clearance environment.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com