About: http://webisa.webdatacommons.org/436032180

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 expandable tubular of claim 1, wherein the spring is a portion of the outer wall surface having a generally serpentine or Z-shaped configuration.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com