About: http://webisa.webdatacommons.org/147062434

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 retractor of claim 1 wherein the sleeve is a thin, flexible sheet having overlapping sealed edges to form a cylinder.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com